Extreme Peptides is a US-based vendor selling both retail vials and bulk quantities, with a catalogue of 46 peptides. The company provides COA coverage for around two-thirds of its catalogue, tested via HPLC and LCMS mass spectrometry, with an average purity of 99.7%. Community feedback is extremely thin—only one positive mention about product quality so far, far too little to establish broader patterns. Pricing data is similarly sparse.
Data last updated
Anecdotal signals
Testing coverage
Price
regional price-per-mg comparisons · 2 out-of-stock offers not shown · prices checked 2mo ago
We don't issue verdicts — we publish the evidence and let it speak. For Extreme Peptides we have 1 substantiated community mention from real, linkable sources. We hold 51 captured lab documents (COAs) for this vendor. Our automated site audit has verified the vendor's published catalogue and COA surface. The sections on this page hold the evidence behind each of those numbers.
We have captured 1 substantiated community mention of Extreme Peptides across product quality (1, mostly positive). Each count reflects real, linkable reports — the quotes behind every number are in the community sections on this page.
24 of 32 observed peptides have a COA mapped to them. Latest captured reports are from S.R. Bio Labs.