Werner Science lists retatrutide as "RTA 60MG" behind a certificate of analysis shown only as a product photo, with no batch or lot number tying it to the vial you receive.

A US-facing peptide storefront on wernerscience.is, fronted by a separate .com splash page.

Where it trips our checks

• COA traceability: the reta certificate is just a product image; the listing's only specs are a SKU and "Source: Werner Science," so nothing ties it to the batch in the vial and purity cannot be verified. A COA a seller cannot tie to a batch is a pattern we see repeatedly in bad actors.
• Contact transparency: the sole contact is a role email (info@wernerscience.is) and live chat, with no company name, address, or registration.
• Purchase protection: the return page makes all sales final, no returns or exchanges, directly beneath a "Satisfaction Guarantee" banner.
• Promotional signal: the closest thing to a buyer review is a seeded-looking "my sister used Werner Science" post on a zero-subscriber Reddit profile.

Sources

• The reader who flagged this asked specifically about retatrutide purity.
• The seller's own surfaces: wernerscience.is, its RTA reta listings, and the return page.
• Cross-check: a logged-in Reddit sweep and a glp1forum search returned no first-hand buyer reports.

Bottom line: No verified scam pattern in the sources reviewed, but transparency and traceability flags with no independent evidence keep this provisional; a first-hand order or an independent batch test would move it.

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