Paramount Peptides User Review: No COA and ignores emails requesting COA
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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.
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They put themselves out there as the most reputable of the bunch, but I'll never buy from them again as they would not produce a CoA for 8 vials I bought. Had to go back and forth for weeks and finally authorized a return and refund after I involved the Peptide Critic himself. Used to have a stellar reputation, now a zero in my world.
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