John P.
Absolutely phenomenal!!!!
Absolutely phenomenal product, customer service and shipping . Nothing but excellence. Highly recommended!
Response from Peakforce LabsApr 13, 2026
We appreciate the kind words John!

At PeakForce Labs, we sell high-purity peptides designed for scientific and laboratory research. We’re committed to quality, safety, and compliance, providing products for research use only — not for human or veterinary use. With PeakForce Labs, you can trust that every order supports precise, reliable, and ethical scientific discovery.For research use only. Not for human consumption.
Peakforce Labs (peakforcelabs.com) has 183 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
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John P.
Absolutely phenomenal product, customer service and shipping . Nothing but excellence. Highly recommended!
Response from Peakforce LabsApr 13, 2026
We appreciate the kind words John!
Jason Y.
My previous experiences were amazing but this last order took 4 weeks to arrive. This was caused by a combination of the item being on back order and then being lost by usps. There was no tracking information from the post office and very little communication from seller. I don’t blame him for the post offices mistakes but I didn’t know about the item being on back order until I called 10 days after purchase. When the items finally arrived they were excellent quality as always so I would buy from him again in the future but I would hope to be notified if an item is not available to ship at the time my order is placed.
Response from Peakforce LabsApr 13, 2026
We will be reaching out! Thank you for the review. We hope to make this right with you ASAP
Nathan O.
Good price point
Response from Peakforce LabsApr 13, 2026
Thank you for the review Nathan!
1979 - BRANDY B.
Great prices and fast shipping! Very pleased with my purchase and will definitely shop with PeakForce again!
Response from Peakforce LabsApr 9, 2026
Thank you for your business and the great review!
John G.
Always great customer service, good prices and fast shipping
Response from Peakforce LabsApr 9, 2026
Thank you so much for the great review!
Pamela C.
Research information is printed at a level of understanding which is great. Ordering process is easy and again, great having the BOGO special back.
Response from Peakforce LabsApr 9, 2026
Thank you for the great review
Allen R.
I recently ordered from this company, and I was blown away by how smooth and fast the entire process was! From the moment I placed my order, everything moved quickly and efficiently. The delivery arrived right on time, and the packaging was top-notch—truly some of the best I’ve seen in the industry. Everything was secure, neat, and gave a premium feel when I opened the box.
Response from Peakforce LabsApr 9, 2026
Thank you for such a wonderful review!
Ryder
Good customer service and quick shipping. Hassle free and trustworthy, I've used them many times and recommended them to other folks and they are also happy.
Response from Peakforce LabsApr 9, 2026
Thank you for taking the time to write a review! We appreciate our business.