Coastal Peptides is a US-based vendor offering both retail and bulk sales, shipping domestically within the United States. The catalogue spans around 20 peptides, nearly all backed by vendor-provided COAs averaging 99.4% purity—though not verified by a third-party lab. The community signal is minimal: just four mentions from a single source, leaning negative on testing transparency and product quality, but far too thin to draw conclusions. Pricing data is nearly absent.
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Anecdotal signals
Testing coverage
Price
regional price-per-mg comparisons · 1 out-of-stock offer not shown · prices checked 2mo ago
We don't issue verdicts — we publish the evidence and let it speak. For Coastal Peptides we have 4 substantiated community mentions from real, linkable sources. We hold 34 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 4 substantiated community mentions of Coastal Peptides across product quality (1, mostly negative), testing transparency (3, mostly negative). Each count reflects real, linkable reports — the quotes behind every number are in the community sections on this page.
17 of 17 observed peptides have a COA mapped to them.