Optimalbiolabs is a US-based vendor offering both retail and bulk sales, shipping from Austin, Texas. The business maintains a broad catalogue with vendor-hosted COAs covering most of its peptides — average purity across 113 reports runs 99.665%, and prices are listed on nearly every product. No community reviews have surfaced yet, so there's no read on product quality, customer service, or shipping experience. The testing is in-house rather than third-party, which is worth noting when evaluating COA transparency.
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Anecdotal signals
Testing coverage
Price
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We don't issue verdicts — we publish the evidence and let it speak. We hold 64 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.
23 of 30 observed peptides have a COA mapped to them. Latest captured reports are from Janoshik.