The requester has ordered from this China factory-direct site for nearly a year with consistent deliveries, but no batch has ever been independently tested.

A China factory-direct peptide manufacturer (tirz-peptide.com) selling powders and vials over WhatsApp, worldwide.

Where it trips our checks

• COA traceability: the site says a test COA is "available," but there's no batch-linked certificate tying a document to what actually ships. A COA you can't match to your batch is a pattern we see repeatedly around bad actors.
• Irreversible payment: it's a factory-direct WhatsApp seller with no card checkout, so payment routes are seller-directed and irreversible.
• Purchase protection: the "resend if not delivered" offer is the seller's own promise, with no dispute path behind it.
• Contact transparency: it's a generic manufacturer template with a sales team on WhatsApp and no verifiable company or address.

Bottom line: No scam pattern found, and the requester reports a year of consistent deliveries, but with no independent buyer reports and no batch ever tested, purity and dose stay unverified. Provisional; an independent test would settle the "does it work" question.

— maxg Founder of Ouros Lab. I write the seller research notes here.