303 Peptides operates as a retail and bulk vendor with a catalogue of 59 peptides. The vendor maintains a minimum order quantity of one vial and lists prices for 49 of its offerings. Regarding testing, the vendor provides 65 certificates of analysis covering 10 of its peptides, with a reported purity of 99.5%. As there is no available anecdotal data or community feedback, the vendor’s operational history and customer service experience remain unverified.
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Anecdotal signals
Price
regional price-per-mg comparisons · prices checked 2d ago
We don't issue verdicts — we publish the evidence and let it speak. We hold 65 captured lab documents (COAs) for this vendor. The sections on this page hold the evidence behind each of those numbers.
9 of 46 observed peptides have a COA mapped to them.