WO2025078573A1 - Photoprotective cosmetic composition - Google Patents

Abstract

The present invention relates to the field of photoprotective cosmetic compositions. More specifically, it relates to a novel photoprotective cosmetic composition in biphasic form comprising a hydroalcoholic phase A that comprises at least two UV filters selected from among terephthalylidene dicamphor sulphonic acid and phenylbenzimidazole sulphonic acid, and a lipophilic phase B that comprises at least three UV filters selected from among ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine and diethylamino hydroxybenzoyl hexyl benzoate.

Description

DESCRIPTION

TITLE: PHOTOPROTECTIVE COSMETIC COMPOSITION

FIELD OF THE INVENTION

[0001] The present invention relates to the field of photoprotective cosmetic compositions. More specifically, it relates to a novel photoprotective cosmetic composition in biphasic form comprising a hydroalcoholic phase comprising at least two UV filters chosen from terephthalylidene diaminosulfonic acid (TDSA) and phenylbenzimidazole sulfonic acid (PB SA) and a lipophilic phase comprising at least three sunscreens chosen from ethyl hexyl triazone (EHT), bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) and diethylamino hydroxybenzoyl hexyl benzoate (DHHB).

STATE OF THE ART

[0002] In humans, the skin is sensitive to solar radiation which can cause a simple sunburn or erythema, as well as more or less severe burns which can lead to irreversible damage such as loss of elasticity of the skin, the appearance of wrinkles leading to premature aging, dermatoses, or even skin cancers. In the context of preventing damage caused by the sun's radiation to the skin, particularly the skin of the face, it appears very important to be effectively protected from harmful solar radiation. Children and adolescents are a population that should be particularly protected, especially since they often do not regularly apply sunscreen to their face, or do not apply it at all.

[0003] It is well known that the most dangerous part of solar radiation is constituted by ultraviolet radiation with wavelengths between 280 nm and 400 nm, corresponding to UVA (Ultra-Violet type A) with wavelengths between 320 nm and 400 nm and UVB (Ultra-Violet type B) with wavelengths between between 280 nm and 320 nm. Organic UV filters are divided into two classes: hydrophilic filters and lipophilic filters. These filters are incorporated into different types of photoprotective formulations such as creams, oils, and biphasic emulsions.

[0004] Biphasic photoprotective cosmetic compositions consist of a hydrophilic phase and a lipophilic phase, each phase being able to comprise miscible sunscreens. Thus, photoprotective emulsions are moisturizing because they contain an aqueous phase, and offer good protection thanks to the presence of lipophilic filters in the fatty phase and possibly hydrophilic filters in the aqueous phase.

[0005] Document WO2021/102113 discloses a photoprotective cosmetic composition comprising five sunscreens that can be formulated in a biphasic formulation. The five filters are disclosed in separate lists and include three UVB filters, one UVA filter and one broad-spectrum UVA + UVB filter. It should be noted that this biphasic composition comprises silicone. However, the presence of this compound does not allow environmental standards to be met.

[0006] Some photoprotective biphasic emulsions have other drawbacks, for example they contain surfactants, or even gelling agents, and can leave white marks on the skin. Furthermore, biphasic emulsions often have a shiny and/or sticky effect on the skin which may be unsuitable, particularly on facial skin.

[0007] The problem that the invention seeks to solve is that of developing a new two-phase photoprotective cosmetic composition that is easy to apply, stable and effective in providing long-lasting protection against UVA and UVB rays.

[0008] A second problem that the invention seeks to solve is to develop a photoprotective cosmetic composition having an SPF of at least 30 without using excessive quantities of sunscreens. [0009] A third problem that the invention seeks to solve is to develop a photoprotective cosmetic composition having a “second skin” effect without a shiny and/or sticky appearance and without an unpleasant odor.

[0010] A fourth problem that the invention seeks to solve is to develop a photoprotective cosmetic composition that can be applied by vaporization/spray, for multi-daily application to the face.

[0011] The Applicant has discovered, surprisingly, that a photoprotective cosmetic composition, consisting of a two-phase hydroalcoholic and lipophilic formulation comprising in association at least five specific sunscreens, exhibited, against all expectations, both a broad filtering power in the ultraviolet in the wavelength range between 280 nm and 400 nm, very good stability and easy application to the skin.

SUMMARY

[0012] The present invention relates to a photoprotective cosmetic composition in two-phase form comprising: a hydroalcoholic phase A comprising at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid, and a lipophilic phase B comprising at least three UV filters chosen from ethyl hexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, and diethylamino hydroxybenzoyl hexyl benzoate.

[0013] In particular, the invention relates to a photoprotective cosmetic composition in two-phase form comprising: a hydroalcoholic phase A comprising at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid, and a lipophilic phase B comprising at least three UV filters chosen from ethyl hexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, and diethylamino hydroxybenzoyl hexyl benzoate, the weight ratio between the hydroalcoholic phase A and the lipophilic phase B being greater than or equal to 1.

[0014] Advantageously, the total content of UV filters present in the hydroalcoholic phase A ranges from 0.5 to 20% by weight, preferably from 1 to 15% by weight, and more preferably from 1 to 10% by weight, relative to the total weight of the hydroalcoholic phase A.

[0015] Advantageously, the total content of UV filters present in the lipophilic phase B ranges from 5 to 40% by weight, preferably from 10 to 35% by weight, and more preferably from 20 to 30% by weight, relative to the total weight of the lipophilic phase B.

[0016] Advantageously, the hydroalcoholic phase A comprises between 3% and 5% by weight of terephthalylidene dicamphor sulfonic acid and between 0.5% and 2% by weight of phenylbenzimidazole sulfonic acid, relative to the total weight of the composition.

[0017] Advantageously, the lipophilic phase B comprises from 3 to 5% by weight of ethyl hexyl triazone, from 2 to 3% by weight of bis-ethylhexyloxyphenol methoxyphenyl triazine and from 1 to 3% by weight of diethylamino hydroxybenzoyl hexyl benzoate, relative to the total weight of the composition.

[0018] Advantageously, the composition according to the invention comprises: a hydroalcoholic phase A comprising:

■ terephthalylidene dicamphor sulfonic acid, in a content ranging from 3 to 5% by weight, and

■ phenylbenzimidazole sulfonic acid, in a content ranging from 0.5 to 2% by weight; and a lipophilic phase B comprising:

■ ethyl hexyl triazone, in a content ranging from 3 to 5% by weight,

■ bis-ethylhexyloxyphenol methoxyphenyl triazine, in a content ranging from 2 to 3% by weight, and

■ diethylamino hydroxybenzoyl hexyl benzoate, in a content ranging from 1 to 3% by weight; the percentages being expressed by weight, relative to the total weight of the composition.

[0019] Advantageously, the lipophilic phase B comprises at least one fatty substance, preferably chosen from fatty alcohols, fatty acids, esters of fatty acids and/or alcohols, vegetable oils and mixtures thereof, more preferably chosen from esters of fatty acids and/or alcohols, vegetable oils and mixtures thereof.

[0020] Advantageously, the photoprotective cosmetic composition further comprises at least one active agent preferably chosen from vitamins, plant extracts, moisturizing agents and mixtures thereof. The active agent may be present in the hydroalcoholic phase A and/or the lipophilic phase B.

[0021] Advantageously, the photoprotective cosmetic composition further comprises at least one vitamin, preferably chosen from vitamin B 3 (niacinamide), vitamin C, vitamin E (tocopherol, tocopheryl acetate) and mixtures thereof.

[0022] Advantageously, the photoprotective cosmetic composition further comprises at least one plant extract, preferably chosen from Buddleja officinalis flower extract, Aloe vera extract, Aloe barbadensis leaf extract, Acerola extract, Magnolia officinalis extract, ginger extract and mixtures thereof, and more preferably from Buddleja officinalis flower extract, Aloe vera extract, Aloe barbadensis leaf extract, Acerola extract and mixtures thereof. The plant extract may be present in the hydroalcoholic phase A and/or the lipophilic phase B.

[0023] Advantageously, the weight ratio between the hydroalcoholic phase A and the lipophilic phase B is greater than or equal to 1, preferably this weight ratio ranges from 1 to 6, preferably from 1 to 3 and more preferably from 1 to 2.

[0024] Advantageously, the photoprotective cosmetic composition is free of silicone. [0025] The present invention also relates to the use of the photoprotective cosmetic composition in the treatment of the skin against UV radiation, in particular against solar radiation.

DEFINITIONS

[0026] In the present invention, the terms below are defined as follows:

[0027] “Composition in biphasic form”, also called biphasic formulation, relates to a composition comprising two phases, one lipophilic and the other hydroalcoholic, visually distinct from each other. This composition is distinguished from emulsions by the fact that at rest and at room temperature, the two phases are visually distinct instead of being emulsified in each other. Thus, the two phases are separated at rest by a single interface, whereas in emulsions, one of the phases is dispersed in the other in the form of a multitude of droplets, and the interfaces are therefore multiple, these interfaces generally being stabilized by emulsifying surfactants and/or emulsifying polymers. The use of a biphasic composition requires prior stirring in order to form an extemporaneous emulsion. This must be of sufficient quality and stability to allow a homogeneous application of the two phases, but such that at rest, the two phases separate relatively quickly and return to their initial state, between 30 seconds and 10 minutes, preferably between 3 minutes and 8 minutes, and even more preferably between 4 minutes and 6 minutes, this phenomenon being better known under the term “phase shift”.

[0028] “two visually distinct phases” means that in a composition one can distinguish with the naked eye without the aid of a magnifying tool the two phases, in particular hydroalcoholic and lipophilic, which are in direct contact with each other.

[0029] “stable composition” refers to the fact that the composition remains in two-phase form, after stirring, with a stable dispersion between the two phases, stable during its storage, without precipitation of the filters included in the two phases. More particularly, after 1 month, preferably after 2 months, of storage at a temperature ranging from 4 to 45°C, the stable composition shows no macroscopic change in color, viscosity, or pH variation, as well as no microscopic variation in appearance.

[0030] “Free from”, before the name of a substance, refers to a composition which does not contain (0% by weight) said substance or whose content of said substance is strictly less than 0.01% by weight, relative to the total weight of the composition.

[0031] “From X to Y” means the range of values between X and Y, the limits X and Y being included in said range.

[0032] “at least one” is equivalent to the expression “one or more”.

[0033] “Content”, before the name of a substance, refers to the mass percentage of this substance in the composition.

[0034] “Surfactant” means an amphiphilic compound which, by this particular structure, makes it possible to lower the free energy of interfaces, for example oil/water or air/water interfaces. Thus a surfactant is a compound which modifies the surface tension between two surfaces. Surfactants facilitate the formation of drops or bubbles by reducing the surface tension.

[0035] “SPF” corresponds to the sun protection factor (SPF) which makes it possible to determine the level of sun protection of a composition. The SPF is determined according to the “in vitro” method described by B.L. Diffey in J. Soc. Cosmet. Chem. 40, 127-133, (1989). The SPF of the photoprotective cosmetic composition according to the present invention is preferably greater than or equal to 20, preferably greater than or equal to 30, more preferably greater than or equal to 40, and even more preferably greater than or equal to 45.

[0036] “water-soluble UV filter” corresponds to any organic or inorganic compound filtering UV-A and/or UV-B radiation which can be completely dissolved in a liquid aqueous phase, and in particular in the hydroalcoholic phase A of the invention. [0037] “liposoluble UV filter” corresponds to any organic or inorganic compound filtering UV-A and/or UV-B radiation which can be completely dissolved in a liquid fatty phase, and in particular in the lipophilic phase B of the invention.

DETAILED DESCRIPTION

[0038] The present invention relates to a photoprotective cosmetic composition in two-phase form comprising: a hydroalcoholic phase A comprising at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid, and a lipophilic phase B comprising at least three UV filters chosen from ethyl hexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, and diethylamino hydroxybenzoyl hexyl benzoate.

[0039] Surprisingly, the Applicant has found that the combination of a hydroalcoholic and lipophilic biphasic formulation with at least five specific sunscreens makes it possible to obtain a photoprotective cosmetic composition which: has a very good sun protection index (SPF factor>30) while complying with the regulatory (EU 1223/2009) and environmental framework, remains stable over time and also has good stability on the skin during and after application, allows easy and frequent application with good spreadability, can be applied in spray form to the face, even over makeup or foundation, frequently, without the need to be spread, has a light texture, a good feel and is considered non-sticky and non-greasy/shiny on the skin, can also protect against blue light and atmospheric pollution. Photoprotective cosmetic composition

[0040] The photoprotective cosmetic composition according to the present invention comprises the combination of at least five UV filters, also called sun filters, chosen from ethyl hexyl triazone, terephthalylidene dicamphor sulfonic acid, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylamino hydroxybenzoyl hexyl benzoate and phenylbenzimidazole sulfonic acid.

[0041] The photoprotective cosmetic composition is in two-phase form and comprises a hydroalcoholic phase A and a lipophilic phase B. The hydroalcoholic phase A comprises the combination of at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid (TDSA) and phenylbenzimidazole sulfonic acid (PBSA). The lipophilic phase B comprises the combination of at least three UV filters chosen from ethyl hexyl triazone (EHT), bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT), and diethylamino hydroxybenzoyl hexyl benzoate (DHHB). In other words, the photoprotective cosmetic composition according to the present invention is in two-phase form comprising:

- a hydroalcoholic phase A comprising the combination of at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid, and

- a lipophilic phase B comprising the combination of at least three UV filters chosen from ethyl hexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, and diethylamino hydroxybenzoyl hexyl benzoate.

[0042] Terephthalylidene dicamphor sulfonic acid (TDSA) is a water-soluble UV-A filter, which can be marketed in particular under the name Ecam H2OUV by the company IES Ingredients.

[0043] The content of terephthalylidene dicamphor sulfonic acid preferably ranges from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, better still from 1 to 5% by weight, and even more preferably from 3 to 5% by weight, relative to the total weight of the photoprotective cosmetic composition. [0044] The content of terephthalylidene dicamphor sulfonic acid preferably ranges from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, better still from 5 to 10% by weight, and even more preferably from 5 to 7% by weight, relative to the total weight of the hydroalcoholic phase A.

[0045] Phenylbenzimidazole sulfonic acid (PBSA) is a water-soluble UV-B filter, which can be marketed in particular under the name Parsol HS by the company IES Ingredients.

[0046] The content of phenylbenzimidazole sulfonic acid preferably ranges from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, better still from 0.5 to 5% by weight, and even more preferably from 0.5 to 2% by weight, relative to the total weight of the photoprotective cosmetic composition.

[0047] The content of phenylbenzimidazole sulfonic acid preferably ranges from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, better still from 0.5 to 5% by weight, and even more preferably from 0.5 to 2% by weight, relative to the total weight of the hydroalcoholic phase A.

[0048] Ethyl hexyl triazone (EHT) is a fat-soluble UV-B filter. It can be marketed under the name Uvasorb ET or Parsol EHT by the companies 3V Sigma and IES Ingredients.

[0049] The content of ethyl hexyl triazone preferably ranges from 0.5 to 15% by weight, more preferably from 1 to 10% by weight, better still from 2 to 8% by weight, and even more preferably from 3 to 5% by weight, relative to the total weight of the photoprotective cosmetic composition.

[0050] The content of ethyl hexyl triazone preferably ranges from 1 to 25% by weight, more preferably from 5 to 20% by weight, better still from 10 to 15% by weight, and even more preferably from 10 to 12% by weight, relative to the total weight of the lipophilic phase B. [0051] Bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) is a fat-soluble UV-A filter, which can in particular be marketed under the name Parsol Shield by the company IES Ingredients.

[0052] The content of bis-ethylhexyloxyphenol methoxyphenyl triazine preferably ranges from 0.1 to 15% by weight, more preferably from 0.5 to 5% by weight, better still from 1 to 5% by weight, and even more preferably from 2 to 3% by weight, relative to the total weight of the photoprotective cosmetic composition.

[0053] The content of bis-ethylhexyloxyphenol methoxyphenyl triazine preferably ranges from 1 to 20% by weight, more preferably from 1 to 15% by weight, better still from 5 to 10% by weight, and even more preferably from 6 to 8% by weight, relative to the total weight of the lipophilic phase B.

[0054] Diethylamino hydroxybenzoyl hexyl benzoate (DHHB) is a fat-soluble UV-B filter, which can in particular be marketed under the name Uvinul A plus Granular or Parsol DHHB by the companies AMI Ingredients or IES Ingredients.

[0055] The content of diethylamino hydroxybenzoyl hexyl benzoate preferably ranges from 0.1 to 15% by weight, more preferably from 0.5 to 5% by weight, better still from 1 to 5% by weight, and even more preferably from 1 to 3% by weight, relative to the total weight of the photoprotective cosmetic composition.

[0056] The content of diethylamino hydroxybenzoyl hexyl benzoate preferably ranges from 1 to 20% by weight, more preferably from 1 to 15% by weight, better still from 5 to 10% by weight, and even more preferably from 5 to 7% by weight, relative to the total weight of the lipophilic phase B.

[0057] According to a particular embodiment, the photoprotective cosmetic composition of the present invention may optionally further comprise at least one additional UV filter, different from the five UV filters defined above, chosen from UV-A filters, UV-B filters and their mixtures. In other words, according to this embodiment, the hydroalcoholic phase A and/or the lipophilic phase B may optionally further comprise at least one additional UV filter, different from the five UV filters defined above, chosen from UV-A filters, UV-B filters and their mixtures.

[0058] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Ethylhexyl Methoxycinnamate (EHC). More preferably, the photoprotective cosmetic composition is free of Ethylhexyl Methoxycinnamate, that is to say that it does not comprise Ethylhexyl Methoxycinnamate (0% by weight).

[0059] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Octocrylene (OCR). More preferably, the photoprotective cosmetic composition is free of Octocrylene, that is to say that it does not comprise Octocrylene (0% by weight).

[0060] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Butylmethoxy Dibenzoyl Metane (BMDBM). More preferably, the photoprotective cosmetic composition is free of Butylmethoxy Dibenzoyl Metane, that is to say that it does not comprise Butylmethoxy Dibenzoyl Metane (0% by weight).

[0061] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Benzophenone-3. More preferably, the photoprotective cosmetic composition is free of Benzophenone-3, that is to say that it does not comprise Benzophenone-3 (0% by weight).

[0062] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Ethylhexyl Salicylate (EHS). More preferably, the photoprotective cosmetic composition is free of Ethylhexyl Salicylate, that is to say that it does not comprise Ethylhexyl Salicylate (0% by weight). [0063] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Homosalate (HMS). More preferably, the photoprotective cosmetic composition is free of Homosalate, that is to say that it does not comprise Homosalate (0% by weight).

[0064] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of Methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT). More preferably, the photoprotective cosmetic composition is free of Methylene bis-benzotriazolyl tetramethylbutylphenol, that is to say that it does not comprise Methylene bis-benzotriazolyl tetramethylbutylphenol (0% by weight).

[0065] According to another particular embodiment, the photoprotective cosmetic composition of the present invention does not comprise UV filters other than the five UV filters defined above. In other words, according to this embodiment, the composition only comprises the combination of the five UV filters chosen from ethyl hexyl triazone, terephthalylidene dicamphor sulfonic acid, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylamino hydroxybenzoyl hexyl benzoate and phenylbenzimidazole sulfonic acid.

[0066] According to this other embodiment, the hydroalcoholic phase A and the lipophilic phase B do not contain any UV filters other than those defined above.

[0067] The total content of UV filters present in the photoprotective cosmetic composition of the invention preferably ranges from 5 to 30% by weight, more preferably from 8 to 25% by weight, and better still from 10 to 20% by weight, relative to the total weight of the composition. By "total content of UV filters" is meant the sum of the content of the at least five UV filters and the content of any additional UV filters, different from the at least five UV filters defined above.

[0068] The content of UV filters, present in the hydroalcoholic phase A of the composition of the invention, preferably ranges from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, and better still from 1 to 10% by weight, relative to the total weight of the hydroalcoholic phase A.

[0069] The content of UV filters, present in the lipophilic phase B of the composition of the invention, preferably ranges from 5 to 40% by weight, more preferably from 10 to 35% by weight, and better still from 20 to 30% by weight, relative to the total weight of the lipophilic phase B.

[0070] By “hydroalcoholic phase” is meant a phase comprising water and at least one organic solvent, in particular at least one alcohol. The at least one organic solvent is preferably chosen from C1 to C4 monoalcohols, such as ethanol or isopropanol, diols or polyols, such as ethylene glycol, propylene glycol (or propanediol), butylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, glycerol and mixtures thereof.

[0071] The total water content present in the hydroalcoholic phase A of the composition of the invention preferably ranges from 25 to 60% by weight, more preferably from 30 to 55% by weight, and better still from 35 to 50% by weight, relative to the total weight of the hydroalcoholic phase A.

[0072] The total content of organic solvent(s), in particular alcohol(s), present in the hydroalcoholic phase A of the composition of the invention preferably ranges from 20 to 50% by weight, more preferably from 25 to 45% by weight, and better still from 30 to 40% by weight, relative to the total weight of the hydroalcoholic phase A.

[0073] The lipophilic phase B may optionally further comprise at least one fatty substance. By “fatty substance” is meant an organic compound insoluble in water at room temperature (25°C) and at atmospheric pressure (760 mm Hg). The at least one fatty substance that can be used according to the present invention is neither polyoxyalkylenated nor polyglycerolated.

[0074] When present, the at least one fatty substance is preferably chosen from fatty alcohols, fatty acids, esters of fatty acids and/or alcohols, vegetable oils and their mixtures, and more preferably among esters of fatty acids and/or alcohols, vegetable oils and their mixtures.

[0075] By “oil” is meant any fatty substance in liquid form at room temperature (25°C) and atmospheric pressure (760 mm Hg). The vegetable oils are preferably chosen from triglyceride oils of vegetable origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms such as triglycerides of heptanoic or octonaic acids or, for example, sunflower, corn, soybean, pumpkin, grape seed, hazelnut, apricot, macadamia, arara, sunflower, castor, avocado, rice, pracaxi oils, jojoba oil, shea butter oil, triglycerides of caprylic/capric acids (such as those sold under the names Cetiol CC®, Citrofol AI or DUBDIS by the company BASF and DUBOIS) and mixtures thereof. According to one embodiment, the fatty body is not castor oil. According to one embodiment, the composition of the invention does not comprise castor oil.

[0076] For the purposes of the present invention, the alcohols, esters and fatty acids preferably have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising 6 to 30 carbon atoms, optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4).

[0077] The fatty alcohols that can be used according to the present invention are preferably liquid at room temperature (25°C) and at atmospheric pressure (760 mm Hg). The fatty alcohols according to the invention are preferably branched and/or unsaturated, and contain from 12 to 40 carbon atoms, and they are non-oxyalkylenated (such as non-ethoxylated) and non-glycerolated. The fatty alcohols preferably have the structure R-OH, in which R preferably denotes a branched C12 to C24 alkyl or C12 to C24 alkenyl group. R may be substituted by one or more hydroxy groups. Preferably, R does not contain a hydroxy group. Examples include oleyl alcohol, linoleyl alcohol, linolenic alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyl-1-dodecanol, 2-butyl octanol, 2-hexyl-1-decanol, 2-decyl-1-tetradecanol, 2-tetradecyl-1-cetanol and mixtures thereof. [0078] The fatty acid and/or fatty alcohol esters that can be used according to the present invention are preferably different from the triglycerides mentioned above. By way of example, mention may in particular be made of esters of saturated or unsaturated, linear or branched C1 to C26 aliphatic mono or poly acids and of saturated or unsaturated, linear or branched C1 to C26 aliphatic mono or poly alcohols, the total number of carbons in the esters being greater than or equal to 6, more advantageously greater than or equal to 10.

[0079] Among the monoesters that can be used, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; C12 to C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso)stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl, mirystyl, stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate.

[0080] It is also possible to use esters of C4 to C22 di or tricarboxylic acids and C1 to C22 alcohols and esters of mono di or tricarboxylic acids and C2 to C26 di, tri, tetra or pentahydroxy alcohols. By way of example, mention may be made in particular of: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; trilactate glyceryl; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisocyanate; and polyethylene glycol distearates.

[0081] Preferably, the at least one fatty substance is chosen from esters of fatty acids and/or alcohols, vegetable oils and mixtures thereof, and more preferably from dicaprylyl carbonate, diisopropyl sebacate, triglycerides of caprylic/capric acids, rice oil, pracaxi oil and mixtures thereof.

[0082] The total content of fatty substances, when they are present in the lipophilic phase B of the composition of the invention, preferably ranges from 40 to 80% by weight, more preferably from 50 to 75% by weight, and better still from 55 to 70% by weight, relative to the total weight of the lipophilic phase B.

[0083] Advantageously, the photoprotective cosmetic composition of the invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of silicone. More preferably, the photoprotective cosmetic composition is free of silicone, that is to say that it does not comprise silicone (0% by weight).

[0084] Advantageously, the photoprotective cosmetic composition of the present invention comprises less than 0.1% by weight, and preferably less than 0.05% by weight of surfactants. More preferably, the photoprotective cosmetic composition is free of surfactant, that is to say that it does not comprise any surfactant (0% by weight).

[0085] The photoprotective cosmetic composition according to the present invention may optionally further comprise at least one active agent. In other words, the hydroalcoholic phase A and/or the lipophilic phase B may optionally further comprise at least one active agent.

[0086] Advantageously, the at least one active agent usable according to the present invention can be chosen from vitamins, plant extracts, moisturizing agents and their mixtures. [0087] By way of example, the vitamins that can be used according to the present invention are preferably chosen from vitamin B3, vitamin C, vitamin E and mixtures thereof.

[0088] The total content of vitamin(s), when present in the composition of the invention, preferably ranges from 0.01 to 8% by weight, more preferably from 0.05 to 5% by weight, and better still from 0.1 to 2% by weight, relative to the total weight of the composition.

[0089] By way of example, the plant extracts that can be used according to the present invention are preferably chosen from Buddleja officinalis flower extract, Aloe vera extract, Aloe barbadensis leaf extract, Acerola extract, Magnolia officinalis extract, ginger extract and mixtures thereof, and more preferably from Buddleja officinalis flower extract, Aloe vera extract, Aloe barbadensis leaf extract, Acerola extract and mixtures thereof.

[0090] By “plant extract” is meant according to the present invention, all or part of the plant including the roots, seeds, pods, leaves and flowers.

[0091] Advantageously, the Buddleja officinalis flower extract is rich in phenylpropanoids (>11.5% dry matter), the purified fraction (without caffeic acid) of the Buddleja officinalis flowers being very concentrated in verbascoside and echinacoside. For example, the Buddleja officinalis flower extract is the SOLIBERINE® product from Greentech. The Buddleja officinalis flower extract may be a composition comprising propanediol as a solvent. The use of a Buddleja officinalis flower extract has the advantage of reducing the quantity of free radicals.

[0092] Advantageously, the Aloe vera extract is an extract of Aloe Barbadensis leaves, for example an Aloe vera extract supplied by Aloecorp, Inc.. The use of an Aloe Barbadensis extract has the advantage of allowing excellent hydration of the skin, of combating inflammation and skin dryness, while leaving the skin smooth and soft. [0093] Advantageously, the Acerola extract is a Malpighia Glabra fruit extract. Preferably, the Acerola extract is in the form of a composition comprising a Malpighia Glabra fruit extract and glycerin, in particular a composition comprising 5% by weight of Malpighia Glabra fruit extract and 95% glycerin, such as the composition COSME-PHYTAMI™ ACREOLA from Alban Muller. Acerola extract is a powerful antioxidant, and has the advantage of brightening the complexion and reducing the visible signs of aging, thus revitalizing stressed and tired skin.

[0094] The total content of plant extract(s), when present in the composition of the invention, preferably ranges from 0.01 to 5% by weight, more preferably from 0.05 to 2% by weight, and better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0095] The photoprotective cosmetic composition according to the present invention may optionally further comprise one or more additional compounds, different from the compounds of the invention, preferably chosen from perfumes, colorants, preservatives, opacifying agents, solubilizing agents and mixtures thereof. Advantageously, the colorants may comprise carotenoid pigments such as lycopene and xanthophyll, for example a composition comprising lycopene and xanthophyll in rice oil (oryza sativa bran oil) may be used, such as the composition MAKIGREEN BLUE from Daito Kasei. Such a composition has the advantage of additionally protecting against blue light. Advantageously, the preservative may be potassium sorbate.

[0096] When they are present in the photoprotective cosmetic composition according to the invention, the total content of additional compounds, different from the compounds according to the invention, advantageously varies from 0.01 to 20% by weight relative to the total weight of the composition. It is understood that those skilled in the art will take care to choose this or these possible additional compounds in such a way that the advantageous properties intrinsically attached to the photoprotective cosmetic composition according to the invention are not, or not substantially, altered by the addition of these possible compounds. [0097] The content of the hydroalcoholic phase A, present in the photoprotective cosmetic composition, preferably ranges from 50 to 80% by weight, more preferably from 55 to 75% by weight, and better still from 60 to 70% by weight, relative to the total weight of the composition.

[0098] The content of the lipophilic phase B, present in the photoprotective cosmetic composition, preferably ranges from 20 to 50% by weight, more preferably from 25 to 45% by weight, and better still from 30 to 40% by weight, relative to the total weight of the composition.

[0099] Advantageously, the weight ratio between the hydroalcoholic phase A and the lipophilic phase B is preferably greater than or equal to 1, more preferably this weight ratio ranges from 1 to 6, better still from 1 to 3 and better still from 1 to 2.

[0100] Advantageously, the pH of the composition according to the invention is between 5.8 and 7.5, preferably between 6.5 and 7.5.

[0101] The composition of the invention is preferably applied in the form of a spray or by vaporization. Advantageously, the particle size of the droplets obtained from vaporization of the composition according to the invention 10 cm from the skin is between D(10) between 18 pm and 23 pm, preferably 21.26 pm; D(50) between 38 pm and 45 pm, preferably 43.01 pm; D(90) between 70 pm and 90 pm, better still between 70 pm and 75 pm, preferably 73.35 pm.

Preferred photoprotective cosmetic composition

[0102] In one embodiment, the lipophilic phase B of the composition of the invention comprises from 3 to 5% by weight of ethyl hexyl triazone, from 2 to 3% by weight of bis-ethylhexyloxyphenol methoxyphenyl triazine and from 1 to 3% by weight of diethylamino hydroxybenzoyl hexyl benzoate, relative to the total weight of the photoprotective cosmetic composition.

[0103] In one embodiment, the hydroalcoholic phase A of the composition comprises between 3% and 5% by weight of terephthalylidene dicamphor sulfonic acid and between 0.5% and 2% by weight of phenylbenzimidazole sulfonic acid, relative to the total weight of the photoprotective cosmetic composition.

[0104] In a very preferred embodiment, the photoprotective cosmetic composition according to the present invention in two-phase form preferably comprises: a. a hydroalcoholic phase A comprising:

- terephthalylidene die amphora-sulfonic acid, in a content ranging from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight, more preferably from 1 to 5% by weight, and better still from 3 to 5% by weight, and

- phenylbenzimidazole sulfonic acid, in a content ranging from 0.05 to 15% by weight, preferably from 0.1 to 10% by weight, more preferably from 0.5 to 5% by weight, and better still from 0.5 to 2% by weight; and b. a lipophilic phase B comprising:

- ethyl hexyl triazone, in a content ranging from 0.5 to 15% by weight, preferably from 1 to 10% by weight, more preferably from 2 to 8% by weight, and better still from 3 to 5% by weight,

- bis-ethylhexyloxyphenol methoxyphenyl triazine, in a content ranging from 0.1 to 15% by weight, preferably from 0.5 to 5% by weight, more preferably from 1 to 5% by weight, better still from 2 to 3% by weight, and

- diethylamino hydroxybenzoyl hexyl benzoate, in a content ranging from 0.1 to 15% by weight, preferably from 0.5 to 5% by weight, more preferably from 1 to 5% by weight, and better still from 1 to 3% by weight; the percentages being expressed by weight, relative to the total weight of the photoprotective cosmetic composition.

Uses

[0105] The present invention also relates to the use of the photoprotective cosmetic composition for protecting human skin against UV radiation, and in particular solar radiation. [0106] The composition according to the invention is intended primarily for daily use, applied in the morning to the face in the form of a spray, for protection against UV-A and UV-B rays, blue light and atmospheric pollution. It is more particularly suitable for young children, adolescents and adults, particularly women, who wear makeup. Before application, the composition according to the invention must be shaken vigorously to obtain homogeneous and optimal spraying.

[0107] In one embodiment, the composition according to the invention provides effective sun protection greater than or equal to SPF20 UVA protection, preferably SPF30 UVA protection, more preferably SPF40 UVA protection and more preferably SPF45 UVA protection. It should be noted that the UVA/SPF ratio of the photoprotective cosmetic composition according to the invention has in vitro a value preferably between 0.33 and 0.5, more particularly a value of 0.46.

[0108] In a final embodiment, the composition according to the invention is suitable for being sprayed onto the skin. Thus, for young children, adolescents and adults, particularly women, who wear makeup, it is possible to use the photoprotective cosmetic composition easily in the morning, after vigorous shaking, by simply spraying it onto the face, while closing the eyes. Applications every two hours are recommended to maintain optimal protection outdoors. A single application in the morning is sufficient if outdoor activity and/or solar radiation is low.

[0109] It should be noted that the photoprotective cosmetic composition according to the invention complies with the regulatory (EU 1223/2009) and environmental framework in the sense that it is compliant for marketing on the market in Europe and beyond.

Process for preparing the composition

[0110] To produce the composition according to the invention, the hydroalcoholic phase A and the lipophilic phase B are first produced. Each composition is then introduced into a static mixer, namely a tube inside which there is a three-dimensional structure promoting the appearance of vortices when a fluid passes through. The phases are then dispersed by a static device, i.e. a device which is not not driven by a rotating system, thus avoiding a dispersion of the lipophilic phase B in the hydroalcoholic phase A.

[OR I] Hydroalcoholic phase A can be prepared by first mixing the UV filters at a temperature of 50°C. The resulting solution is then gradually cooled to room temperature. Any additional compounds can be added during this cooling step. The final solution is then left to stand for 24 hours and then filtered to obtain hydroalcoholic phase A.

[0112] Lipophilic phase B can in particular be prepared by first mixing the UV filters at a temperature greater than or equal to 75°C. The solution thus obtained is allowed to cool to a temperature below 40°C before the possible addition, with stirring, of additional compounds. The final solution is then allowed to cool to room temperature to obtain lipophilic phase B.

EXAMPLES

selon l’invention [0113] The present invention will be better understood by reading the following examples which illustrate the invention in a non-limiting manner.

according to the invention

[0114] Biphasic composition C

[0115] The ingredients of the hydroalcoholic phases A and lipophilic B of composition C are presented in tables 1 and 2 below (the percentages being expressed as a percentage of active material relative to the total weight of the phase comprising them). [0116] [Table 1]

[0117] [Table 2]

[0118] Protocol

[0119] The two-phase composition C is prepared according to the following protocol: - The hydroalcoholic phase A is prepared:

■ by dissolving potassium sorbate with arginine in purified demineralized water heated to 50°C, while stirring. Then the UV filter terephthalylidene dicamphor sulfonic acid is added, in order to obtain a clear and transparent Al solution. ■ The UV filter phenylbenzimidazole sulfonic acid is then added to this solution Al at a temperature of 50°C and the mixture is stirred vigorously until a clear, transparent, slightly pale yellow solution A2 is obtained.

■ Add to the previously obtained solution A2, cooled to a temperature below 40°C, the Aloe Vera leaf extract, Niacinamide, Malpighia Glabra fruit extract, and Buddleja Officinalis flower extract, while stirring, until a clear, transparent, slightly brown solution A3 is obtained.

■ Finally, ethanol and perfume are added to solution A3, cooled to an ambient temperature of approximately 25°C, in order to obtain phase A4, constituting the hydroalcoholic phase A.

We prepare the lipophilic phase B:

■ Dicaprylyl carbonate, diisopropyl sebacate and triethyl citrate are mixed under stirring and heated to a temperature of 75°C to obtain a solution Bl,

■ UV filters Ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine and diethylamino hydroxybenzoyl hexyl benzoate are added to solution Bl while stirring, to obtain a clear yellow solution B2,

■ Solution B2 is cooled to 40°C, then the tocopherol, colorants, and tocopheryl acetate are added. Solution B3 is allowed to cool gradually in a cold water bath without ice cubes, to room temperature. This gives the lipophilic phase B.

[0120] The hydroalcoholic A and lipophilic B phases thus obtained are then mixed according to a weight ratio A/B of 1.9. The photoprotective cosmetic composition C thus obtained is then stored at a temperature above 15°C.

[0121] The stability of the composition was conducted under different temperatures at 4°C, 25°C and 40°C for 3 months. The characteristics of the product remained substantially identical, in particular color, pH, SPF and UVA performance. The composition of the invention therefore remains stable over time.

Example 2: Comparative stability tests [0122] Comparative compositions

[0123] Cosmetic composition C of Example 1 was compared with two other comparative compositions, one of which is a 100% liposoluble DI composition (Table 3), and the other is a biphasic composition D2 (Table 4). The ingredients of comparative compositions DI and D2 are mentioned in Tables 3 and 4 below (the percentages being expressed as percentages by weight of active ingredient relative to the total weight of the composition comprising them).

[0125] [Tableau 4]

[0124] [Table 3]

[0125] [Table 4]

[0126] Tests carried out: The stability of the filters was studied at different temperatures 4°C, 25°C and 40°C for 3 months and at 50°C for 1 month.

[0127] Results [0128] In the comparative composition DI as well as in the comparative biphasic composition D2, the UV filters crystallize; whereas in the biphasic composition C (of example 1) according to the invention, stability is observed without modification of the stability of the filters, nor crystallization, nor drop in performance for the SPF and UVA measurements measured in vitro. Example 3: Sensory evaluation of cosmetic composition C according to the invention

[0129] The biphasic composition C of Example 1 was introduced into a bottle equipped with a pump in order to obtain a spray. Said spray was then tested on ten female and male volunteers aged 25 to 65. Before application, the composition was shaken vigorously, then applied to the forearm by spraying 15 cm from the arm.

[0130] Each volunteer then assigned a score ranging from 1 to 5 to each of the effects listed in Table 5 below and according to the criteria specified below.

[0131] [Table 5]

[0132] Results [0133] The average of the results obtained, for four measurements carried out, for each of the criteria is expressed in table 6 below.

[0135] La composition sous forme de spray selon l’invention présente sur la peau pendant l’application une très bonne fraicheur et une très bonne uniformité, sans coloration de la peau. Après deux minutes d’application, elle ne présente pas de brillance ni de toucher gras, n’est pas collante et donne une sensation de seconde peau. [0134] [Table 6]

[0135] The composition in spray form according to the invention presents on the skin during application a very good freshness and a very good uniformity, without coloring the skin. After two minutes of application, it does not present any shine or greasy feel, is not sticky and gives a second skin sensation.

Example 4: Evaluation of the particle size of the droplets obtained from the spray according to the invention

[0136] Two pumps marketed by the company SILGAN Dispensing were tested to measure the particle size of the composition according to the invention. Pump 1 is the SP22 Panache Dosage 130 pl pump and pump 2 is the Panache 40° Actuator pump. The results obtained are presented in Table 7.

[0137] [Table 7]

[0138] The composition of the invention complies with the conditions of the Cosmetic Regulation EC 1223/2009 in force. The composition is therefore compliant from a regulatory point of view and respects the integrity of the users' skin. The product is therefore compliant with its use for human health. Other properties such as covering the spectrum in visible light have shown significant effectiveness.

Example 5: Comparative tests of stability, SPE - UVA performance, sensoriality and sprayability

[0139] The biphasic composition C according to the invention of example 1 was compared to 5 biphasic compositions in which the TDSA (UVA) filter is absent, in order to show the importance of this particular filter on the properties of the composition of the invention. In particular, the following properties were evaluated: stability of the formula, SPF and UVA performance, impact on sensoriality, and impact on sprayability.

[0140] The biphasic formulations compared are as follows: composition C (example 1), according to the invention; composition E1: removal of the 4% of TDSA from composition C, replaced by 4% of water; composition E2: removal of the 4% of TDSA from composition C, replaced by 4% distributed over the 3 UV filters of the lipophilic phase; composition E3: removal of the 4% of TDSA from composition C, replaced by 4% distributed over the 3 UV filters of the lipophilic phase and increase in emollients (in the lipophilic phase) proportionally to the increase in filters to better solubilize them; composition E4: removal of the 4% of TDSA (UVA filter) from composition C, replaced by 4% of DHHB alone (UVA filter of the lipophilic phase); composition E5: removal of 4% TDSA (UVA filter) from composition C, replaced by 4% DHHB alone (UVA filter of the lipophilic phase) increase in emollients (in the lipophilic phase) proportionally to the increase in DHHB to better solubilize it.

[0141] Compositions E1-E5 were prepared according to the same procedure as that described in Example 1 for composition C. The final compositions of C and LIES are detailed in Table 8, expressed as mass percentages relative to the total mass of the composition.

[0142] [Table s]

[0143] Stability:

[0144] The stability of the two-phase compositions C and E1-E5 was evaluated at room temperature and at +4°C for 14 days. In particular, the macroscopic appearance of the aqueous, fatty and combination phases in the finished product was observed. Stability is considered to exist when the non-crystallization of the filters in the aqueous phase and/or the oil phase and/or in the biphasic product. Conversely, the formula is considered not to be stable when the filters crystallize under the test conditions.

[0145] The composition according to the invention remained stable at room temperature and at +4°C during the 14 days of the test.

[0146] On the contrary, for compositions E1-E5, systematic crystallization was observed in the hydroalcoholic phase A comprising the PBSA filter, in the absence of TDSA. In addition, a disorder of the lipophilic phase was systematically observed in the biphasic compositions E1-E5.

[0147] Impact on SPF - UVA performance:

[0148] The sun protection index (SPF) and UVA were determined for all compositions, as reported in Table 9. The measurements were carried out according to the ISO24443 method adapted to in vitro SPF, on a Labsphere US-2000S (UV spectrophotometer).

[0149] [Table 9]

[0150] The comparative compositions allow to obtain better SPFs in general and the replacement of TDSA by DHHB in compositions E4 and E5 allows to obtain a better UVA value.

[0151] However, as highlighted above, these SPF and UVA performances are at the expense of the stability of the formulations.

[0152] Impact on sensoriality:

[0153] Compositions C and E1-E5 were tested according to the method of Example 3.

[0154] Composition C shows the best results and composition El gives similar results, while compositions E2-E5 give less good results. In order of results on sensoriality, the compositions can be classified as follows: C >= El > E2 > E4 > E3 >= E5.

[0155] The poorer results of compositions E2-E5 can be explained by the increase in the proportion of lipophilic phase, which increases from 34.7% in compositions C and E1 to 50.4% in compositions E3 and E5.

[0156] Impact on sprayability

[0157] Compositions C and E1-E5 were tested comparatively in the same 50mL pump bottle model. After shaking the bottle, the compositions were sprayed in 5 sprays from the bottle positioned vertically approximately 15-20 cm from a vertical flat surface.

[0158] Composition C shows the best results and composition E1 gives similar results, while compositions E2-E5 give less good results. In order of results on sprayability, the compositions can be classified as follows: C >= E1 > E2 > E4 > E3 >= E5.

[0159] As for sensoriality, the poorer results of compositions E2-E5 in sprayability can be explained by the increase in the proportion of lipophilic phase.

[0160] Conclusion:

[0161] These comparative tests highlight that the choice of the 5 UV filters present in the biphasic composition of the invention, EHT/BEMT/DHHB in the lipophilic phase and PBSA/TDSA in the aqueous phase, is the result of a reasoned and not arbitrary choice. The distribution of the filters selected between the two phases proved to be the best compromise between the stability of the formula, its SPF and UVA performance and the quality of the delivery in spray mist allowing a homogeneous and sensorially pleasant application on the face.

Claims

1. Photoprotective cosmetic composition in two-phase form comprising: a hydroalcoholic phase A comprising at least two UV filters chosen from terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid, and a lipophilic phase B comprising at least three UV filters chosen from ethyl hexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, and diethylamino hydroxybenzoyl hexyl benzoate, the weight ratio between the hydroalcoholic phase A and the lipophilic phase B being greater than or equal to 1. 2. Composition according to claim 1, characterized in that the total content of UV filters in the hydroalcoholic phase A ranges from 0.5 to 20% by weight, preferably from 1 to 15% by weight, and more preferably from 1 to 10% by weight, relative to the total weight of the hydroalcoholic phase A. 3. Composition according to claim 1 or 2, characterized in that the total content of UV filters in the lipophilic phase B ranges from 5 to 40% by weight, preferably from 10 to 35% by weight, and more preferably from 20 to 30% by weight, relative to the total weight of the lipophilic phase B. 4. Composition according to any one of the preceding claims, characterized in that the hydroalcoholic phase A comprises between 3% and 5% by weight of terephthalylidene dicamphor sulfonic acid and between 0.5% and 2% by weight of phenylbenzimidazole sulfonic acid, relative to the total weight of the composition. 5. Composition according to any one of the preceding claims, characterized in that the lipophilic phase B comprises from 3 to 5% by weight of ethyl hexyl triazone, from 2 to 3% by weight of bis-ethylhexyloxyphenol methoxyphenyl triazine and from 1 to 3% by weight of diethylamino hydroxybenzoyl hexyl benzoate, relative to the total weight of the composition. 6. Composition according to any one of the preceding claims, characterized in that it comprises: a hydroalcoholic phase A comprising: ■ terephthalylidene dicamphor sulfonic acid, in a content ranging from 3 to 5% by weight, and ■ phenylbenzimidazole sulfonic acid, in a content ranging from 0.5 to 2% by weight; and a lipophilic phase B comprising: ■ ethyl hexyl triazone, in a content ranging from 3 to 5% by weight, ■ bis-ethylhexyloxyphenol methoxyphenyl triazine, in a content ranging from 2 to 3% by weight, and ■ diethylamino hydroxybenzoyl hexyl benzoate, in a content ranging from 1 to 3% by weight; the percentages being expressed by weight, relative to the total weight of the composition. 7. Composition according to any one of the preceding claims, characterized in that the lipophilic phase B comprises at least one fatty substance preferably chosen from fatty alcohols, fatty acids, esters of fatty acids and/or alcohols, vegetable oils and their mixtures, more preferably from esters of fatty acids and/or alcohols, vegetable oils and their mixtures. 8. Composition according to any one of the preceding claims, characterized in that the hydroalcoholic phase A and/or the lipophilic phase B further comprises at least one active agent preferably chosen from vitamins, plant extracts, moisturizing agents and their mixtures. 9. Composition according to claim 5, characterized in that the vitamins are chosen from vitamin B3, vitamin C, vitamin D, vitamin E and their mixtures. 10. Composition according to any one of the preceding claims, characterized in that the hydroalcoholic phase A and/or the lipophilic phase B further comprises at least one plant extract, preferably chosen from Buddleja officinalis flower extract, aloe vera extract, Aloe barbadensis leaf extract, Acerola extract, Magnolia officinalis extract, ginger extract and mixtures thereof, and more preferably from Buddleja officinalis flower extract, aloe vera extract, Aloe barbadensis leaf extract, Acerola extract and mixtures thereof. 11. Composition according to any one of the preceding claims, characterized in that the weight ratio between the hydroalcoholic phase A and the lipophilic phase B ranges from 1 to 6, preferably from 1 to 3 and more preferably from 1 to 2. 12. Composition according to any one of the preceding claims, characterized in that it is free from silicone. 13. Composition according to any one of claims 1 to 12 for its use in the treatment of the skin against UV radiation, in particular against solar radiation.