Peak Peptides Reviews 

27
TrustScore 4 out of 5

4.0

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Rated 5 out of 5 stars

Great lab to order from! Easy to use website, convenient check out and super fast shipping! Peptides arrive securely and professionally packaged. Super impressed! I have placed multiple orders no... See more

Rated 5 out of 5 stars

Ordered a couple of things from Peak a few weeks back, mostly to see how they'd go. Turned up faster than half the stuff I get off Amazon these days. Packaging was solid — nothing rattling around, eve... See more

Rated 5 out of 5 stars

I’ve had a really positive experience with Peak Peptides. The ordering process was smooth, shipping was fast, and everything arrived well-packaged and clearly labeled. It’s always a good sign when... See more

Company replied

Rated 1 out of 5 stars

Order took 2 months. Was given a discount code for the next order as sorry. When we finally received one needle was faulty in that it was all cloudy (ordered two and one was not cloudy) nurse friend s... See more

Company replied

Company details

  1. Vitamin and Supplements Store

Written by the company

Peak Peptides is a trusted source for research-grade peptides and laboratory compounds, serving researchers, laboratories, and scientific professionals nationwide. We specialize in high-purity synthetic peptides, peptide research compounds, and scientific reference materials produced to strict quality and consistency standards. Our catalog features a broad range of peptide compounds, peptide blends, and research chemicals formulated exclusively for controlled laboratory and in-vitro research applications. Every product is carefully handled, securely packaged, and clearly labeled to support accurate, reproducible research outcomes. We are committed to quality control, transparent sourcing, and dependable fulfillment backed by fast shipping and responsive customer support. We hold ourselves to a high standard of professionalism and compliance, providing thorough documentation and a seamless ordering experience from start to finish.


Contact info

4.0

Great

TrustScore 4 out of 5

27 reviews

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1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 83% of negative reviews

Typically replies within 1 week

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4.0

All reviews

(27)

27 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Great lab to order from!

Great lab to order from! Easy to use website, convenient check out and super fast shipping! Peptides arrive securely and professionally packaged. Super impressed! I have placed multiple orders now with no issues and quality is excellent! So happy I found this company, highly recommend!

July 11, 2026
Unprompted review
Rated 5 out of 5 stars

Does what it says

Ordered a couple of things from Peak a few weeks back, mostly to see how they'd go. Turned up faster than half the stuff I get off Amazon these days. Packaging was solid — nothing rattling around, everything sealed properly. Been using it consistently since and no complaints. Site's easy to use, checkout was quick, tracking updated when it said it would. I've dealt with a lot of online suppliers over the years and this one just does what it says. Will be back.

June 20, 2026
Unprompted review
Rated 5 out of 5 stars

5/5 stars EARNED.

Great communication with the staff. Prompt replies and answers are succinct. Delivery and shipping was exactly as promised.

Will def recommend and buy again.

July 1, 2026
Unprompted review

Trustpilot is assessing this review in accordance with our flagging process.

Rated 1 out of 5 stars

This company is fraudulent

This company is fraudulent. They sent me two empty vials one was grow and the other was melatonin two empty vials came. They’re scammers do not use them.

May 27, 2026
Unprompted review
Peak Peptides logo

Reply from Peak Peptides

We do not have any orders from Jim Tittjung. You are reviewing the wrong business

Rated 1 out of 5 stars

MULTIPLE ISSUES

Order took 2 months. Was given a discount code for the next order as sorry. When we finally received one needle was faulty in that it was all cloudy (ordered two and one was not cloudy) nurse friend said definitely do not use. Took photos and emailed / WhatsApp multiple times, never got a response. Stupidly decided to give benefit of the doubt. Ordered again. It’s been a month still nothing AND we used the discount code sent to us, which showed the discount at checkout but when we actually paid it charged the full price to our card. Obviously no response again. Absolutely would not recommend.

January 11, 2026
Unprompted review
Peak Peptides logo

Reply from Peak Peptides

Hello Yasmin,
I looked up your full name in our order history and we have never received an order from you.
We do not ship to Indonesia we are based and ship only in the USA

You have mistakenly wrote a review for the wrong business.

We also do not respond via WhatsApp and we handle our customer service inquires promptly.

Rated 1 out of 5 stars

Still haven’t received my order after…

Still haven’t received my order after 2months, nobody responds to emails and told not to expect a refund via WhatsApp 💁‍♂️

May 4, 2026
Unprompted review
Peak Peptides logo

Reply from Peak Peptides

Dougal,
You genuinely have the wrong business. I can assure 100% you did not order from www.peakpeptides.shop.

You have us mistaken for Peaksupplements in AU
We do not ship to Australia we are based and ship only in the USA

1. We do not respond via WhatsApp
2. We 100% take care of refunds promptly
3. We have zero order history with you

Kindly delete this review

Rated 5 out of 5 stars

Fast shipping

Fast shipping. Loved the discount.

April 16, 2026
Peak Peptides logo

Reply from Peak Peptides

Your very welcome

Hope to see you purchased from us again :)

Rated 5 out of 5 stars

I’ve had a really positive Great Experience, Fast, Reliable, and High Quality experience…

I’ve had a really positive experience with Peak Peptides. The ordering process was smooth, shipping was fast, and everything arrived well-packaged and clearly labeled. It’s always a good sign when a company pays attention to those details.

What stood out most to me was the consistency and quality. Everything felt reliable, and I didn’t run into any of the issues you sometimes see with lesser known sources. Their customer service was also responsive and helpful when I had a question, which goes a long way.

Overall, Peak Peptides has been solid across the board, and I’d feel comfortable ordering from them again.

April 14, 2026
Peak Peptides logo

Reply from Peak Peptides

Thank you for choosing us to be your research use only Peptide supplier 🙏🏻

Rated 5 out of 5 stars

The customer service was top tier

The customer service was top tier! I was very pleased being reached out to to see if I had any questions or concerns and on a holiday!

April 5, 2026
Peak Peptides logo

Reply from Peak Peptides

Thank you for your business!

Rated 5 out of 5 stars

Peak Peptides #1

These guys know their stuff and their products are legit. They offer a wide variety of options to choose from that is catered to your needs. I had really good results within a few weeks, everyone is different. Can’t wait to get my next batch and will be using Peak Peptides til the end of time. Preventive medical care is the way to go!

February 1, 2026
Unprompted review
Peak Peptides logo

Reply from Peak Peptides

Heck, yeah thanks for being a loyal researcher

Rated 5 out of 5 stars

I honestly can’t say enough good things…

I honestly can’t say enough good things about these peptides. From the moment I started using them, I felt a difference—and as the days went on, the results just kept getting better and better. I’m beyond impressed.

What really stands out to me is the quality. You can tell right away that they take pride in what they carry. Everything feels clean, consistent, and effective. The results I’ve experienced have exceeded my expectations in every way.

I feel more energized, more focused, and overall just better in my day-to-day life. It’s not just a small improvement—it’s been a noticeable, game-changing difference. And that’s something you don’t come across often.

I’m genuinely excited about continuing this journey with their products. If you’re on the fence, don’t be. This has been one of the best decisions I’ve made, and I’m extremely happy with everything so far. Highly recommend to anyone serious about getting real results!

February 1, 2026
Unprompted review

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