Peptide Critic Community

This is a vendor review submitted by bryanbleck on PeptideCritic.com.

Rating: (2/5)

Review

I’ve made two purchases from this site in the last three months and both times my credit card information was later stolen and used for credit card fraud. I used a different card each time so I’ve had to cancel both cards as a result. The peptides I ordered seem to be legit and I have had no problems with their products at all. However, they seem to have poor security and are compromised or they have bad actors working there that steal credit cards. Be careful when ordering from them.

Products I’ve ordered:

1. Retatrutide
2. Tirzepatide
3. KLOW

All the peptides were great, but I won’t use them again because of the credit card fraud.

Shop Puratek Peptides

Read the full review: Great Peptides but both credit cards I used were stolen afterwards

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This is a vendor review submitted by Brian C on PeptideCritic.com.

Rating: (1/5)

Review

This was my first peptide purchase, and it ended up being a real learning experience. On April 29, 2026, I ordered five vials of their 2X Blend (Tesamorelin 10mg / Ipamorelin 5mg) Research Blend.

The vendor lists COAs on their website, and I made the mistake of assuming the most recent one matched my order. It didn’t. Their latest published COA for this blend is from July 2025, while the vial I received was from lot 2X12A013026, which has no COA on file at all.

Separately, I also had a shipping address issue. I emailed support about that and they responded immediately and fixed it without any hassle. But when I followed up about the missing COA, I got nothing… no reply at all.

Given the total lack of response on a basic quality/testing question, I can’t recommend this vendor.

Shop Paramount Peptides

Read the full review: No COA and ignores emails requesting COA

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