Retatrutide (Research Grade)

Retatrutide is one of the harder compounds to source with a verified CoA in the UK — Pepturion had it in stock, documented properly, and dispatched same day. Vial arrived sealed and intact.

The CoA includes HPLC purity and mass spec data specific to this batch — for a GIP/GLP-1/glucagon triple agonist, that level of documentation is non-negotiable and Pepturion delivers it.

Arrived in 2 days in discreet outer packaging — lyophilised powder was white, fine, and dry with no clumping or off-colour particles. Exactly the presentation you expect from a quality supplier.

Second order — stock was available immediately and batch quality is consistent with the first. Good supplier for a compound that’s genuinely difficult to find documented properly in the UK.

Vial tamper seal intact, label accurate, outer box undamaged — the dispatch confirmation came through within the hour and it arrived next day without issue.

Molecular weight and peptide sequence correctly listed on the product page — the CoA lot number matched the vial on arrival, which is the basic traceability standard you need for proper research sourcing.

Ordered Retatrutide alongside Semaglutide — both arrived together, both vials in perfect condition with seals intact. Pepturion is the only UK supplier I trust for the newer incretin-class compounds.

Clean white lyophilised powder, properly crimped vial, accurate label — consistent quality across two separate orders and the CoA has been thorough both times.

Fast pre-Christmas dispatch and it arrived within 2 days — discreet packaging, vial intact, and the product page specification is more accurate than anywhere else I’ve checked for this compound in the UK.

Tried three other suppliers for Retatrutide before Pepturion — none matched on documentation quality. The HPLC data is right there on the CoA and the vial condition on arrival was perfect.