Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
32 reviews
Peak Performance PeptidesSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Peak Performance Peptides supplies high-purity research peptides and laboratory consumables for scientific, academic, and industrial research. We focus on reliable quality, transparent batch documentation, and fast U.S. shipping. Our catalog is designed for laboratory professionals seeking consistent research-grade materials, not for human use.
Peak Performance Peptides (peak-performancepeptides.com) has 32 customer reviews on The Fair Hearing, with an average rating of 4.9 out of 5.
Showing 31 reviews with 5 stars · Clear filters
Great service, great customer support, and trusted products!
By CG
Response from Peak Performance Peptides· Sep 6, 2026
Thank you so much for the kind words Cherry. I know I have spoken to you over the phone and I am glad to be able to help provide you with the products you need.
Excellent customer service and fast shipping! I received my items in just one day! It's incredible! Thank you, Peak Performance!
By WAH
Response from Peak Performance Peptides· Sep 6, 2026
Thank you so much for the kind words Wesley! I treat my customers the same way I like to be treated when I order from a company. I want my products shipped out the same day if possible.
Delivery and packaging is fast and secure. I’ve ordered a variety of products but only used the Reta thus far and it’s as advertised. About to pick up some NAD+ and Glutathione (when it’s back in stock). ill continue to trust Mike and Peak with all my peptide needs going forward.
By Adam G.
Response from Peak Performance Peptides· Jul 30, 2026
Adam, Thank you so much for taking the time to stop and leave a review, and also for trusting Peak Performance Peptides. It really means a lot me. I’m glad everything arrived quickly and safely, and happy to hear the PP-RT is giving you the results you were hoping it would. I think you’re going to love the NAD+. It’s a staple in my stack. I’m looking forward to trying the Glutathione out for myself. Labels are in I am just waiting on testing to come back. I am thinking sometime next week it will be uploaded on the site as long as testing comes back and everything is good to go! I truly appreciate your support. There are a lot of companies out there, so the fact that some of you continue to choose Peak Performance means more than you know. I’ll keep doing everything I can to earn that trust by providing quality products, testing every batch, and giving all of my customers the best service I can. Thanks again Adam! — Mike Peak Performance Peptides
Great products excellent customer service
By Naomi C.
Response from Peak Performance Peptides· Jul 30, 2026
Thank you so much, Naomi! That really means a lot. You’ve been with Peak Performance Peptides since the very beginning and were one of the first people to take a chance on me when this was just getting started. I’ll never forget that, and I’m incredibly grateful for your trust and support. Thank you for sticking with me and for being such an amazing customer. I’ll keep working hard to make sure the products and customer service always live up to your expectations. I truly appreciate you! — Mike Peak Performance Peptides
Mike was very knowledgeable and he answered all my questions . Got my delivery fast ..
By Michelle G.
Response from Peak Performance Peptides· Jul 30, 2026
Thank you so much, Michelle! I really appreciate you taking the time to leave a review. I am always glad to help out in anyway that I can. I’m glad I was able to answer all of your questions and get your order to you quickly. It always means a little extra when I get to help someone from my hometown. Thank you for trusting Peak Performance Peptides. If you ever have any questions or need anything in the future, you have my number. — Mike Peak Performance Peptides
I don't know how Mike doesn't have 10 stars.... probably because it only goes up to 5! Im Glad that he's local and I was able to meet him in person before making a purchase. I thought I knew a lot about peptides but Mike know a hell of a lot more and gave me very good advice. His response time is great he gets back to you quickly! His product presentation is very professional... It doesn't look like an 8yo slapped a lable on a bike lol . After reconstitution everything mixes well and looks good! His website gives you up to date information in regards to what was in stock so check it regularly! Over all I'm very happy with this product and the owner ! It would be cool if he made stickers though lol but I'm sure he's working on that ! Thanks Mike !!
By Luis M.
Response from Peak Performance Peptides· Jul 3, 2026
Thank you so much for the amazing review! I enjoyed having the opportunity in meeting you in person and I really appreciate you taking the time to share your experience with everyone. I genuinely enjoy talking peptides and helping people understand them better so I’m glad I was able to help. I also put a lot of effort into making sure everything from the website and product presentation to third-party testing and shipping is as professional and transparent as possible. I am a little OCD with the labels being perfect. Very rarely will you get a product with a label that isn’t near perfectly aligned 😂 And as for the stickers… you actually read my mind. They’re already in the works, so keep an eye out. 😄 Thank you again for your support and for trusting Peak Performance Peptides. I truly appreciate your business and I’m always here if you have any questions or need anything in the future! I appreciate the business you send my way and I will always make sure to compensate you when you order. I truly do appreciate the referrals.
One thing about the owner, he is a really responsive and really informative. Mike will go above and beyond to make sure your getting Quality product at a competitive price. The R3ta? Its literally at a price you cant even dream to see with these big named companies and he has multiple COA’s proving the quality of his product. He was my first source to get product from and definitely someone Im going to stay loyal to 🫡
By Jordy
Response from Peak Performance Peptides· Jul 3, 2026
Thank you so much for the incredible review and for putting your trust in Peak Performance Peptides from the very beginning! It truly means a lot to me Jordy. I really do try to keep prices competitive without ever compromising on quality or transparency. Every batch is third-party tested and making those COAs readily available is a big part of my commitment to all of you. I will never post a product without testing it first. Thank you again for your business and for taking the time to share your experience. Real customer reviews like this truly do help. Mike
good product. Very professional and on time
By John
Response from Peak Performance Peptides· Jul 3, 2026
Thank you, John! I truly appreciate your support. I do my best to get every order shipped the same day and aim for a 2–3 day delivery window. If it looks like delivery may take longer, I’ll often upgrade the shipping at my own expense to help ensure your order arrives as quickly as possible. Thanks again for your business! Mike
