A buyer says Peptide World's retatrutide tested negative for the drug, and other vials in the same order were fakes the seller never refunded.

*"Shipped a product that tested negative for reta.

Shipped other products that were fake, failed to give refund or reship items that got seized.

Www.taishijie.com Whatsapp: +852 6205 5617 Goes by zaho Tao Has good prices. Says he is the boss."*

Where it trips our checks

• Substantiated first-hand reports: the reader who flagged this had a vial test negative for retatrutide and received other products they describe as fake. A seller shipping a compound that isn't the compound is a pattern we see repeatedly in bad actors.
• Purchase protection: after the dispute the seller refused any refund or reship, including items lost to a customs seizure.
• Contact transparency: the brand sells over WhatsApp across two domains, with a rep who claims to be the boss but shows no registered business identity.

Sources

• The reader who flagged this, a first-hand buyer account (a negative test, fake vials, a refused refund).
• The seller's own surfaces: taikangbio.com, taishijie.com, and WhatsApp +852 6205 5617.
• Cross-check: a logged-in Reddit sweep found one "scammed?" thread reporting this vendor's reta had no effect; a glp1forum.com search returned nothing.

Bottom line: high scam risk on one detailed but unverified buyer account. A second independent report or a lab result we can see would confirm it. Evidence still limited.

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