Doublerlabs is a US-based vendor that sells peptides both as individual vials and in bulk, with a catalogue of 29 peptides and listed prices for each. The vendor does not publish third-party certificates of analysis—no lab testing, purity data, or independent verification is available on the site.
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Anecdotal signals
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Price
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We don't issue verdicts — we publish the evidence and let it speak. We hold 28 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.
12 of 25 observed peptides have a COA mapped to them. Latest captured reports are from Janoshik.