Research reagents
Analytical-grade peptides for qualified laboratories
Lyophilized Retatrutide, GHK-Cu, and Melanotan II. Each lot is offered as a starter kit with bacteriostatic laboratory water and 10 sealed needles for in-vitro standard prep — not for administration.
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Current lots
Bestseller
Retatrutide
Lyophilized Reta for in-vitro laboratory research. Lot-matched COA. Not for human or veterinary use.
YA(Aib)QGTFTSDYSIL(α-MeLeu)LDKK(lipid)AQA(Aib)AFIEYLLEGGPSSGAPPPS-NH2 · 4731.3 g/mol · 2381089-83-2
Starter kit detailsWhat laboratories write
COA matched in-house HPLC
Lot purity on the COA was within 0.3% of our in-house HPLC. Labels carried sequence, net content, and lot. Packaging was quiet and the temperature logger printout was in the box.
Documentation was complete
We buy reference peptides for assay work. The paperwork was the reason we stayed — COA, sequence, storage, and a clear research-use declaration. No leftover marketing copy in the insert.
Identity confirmed on LC-MS
Observed mass matched the stated sequence. Vial seal was intact. We will not comment on biology; as a chemical standard this lot was as described.