UK Buyer's Guide

PT-141 Purity and CoA UK

PT-141 batch UKPL-5217 returned 99.939% on Janoshik test #229868, one of the highest purity figures in our catalogue.

Why PT-141 purity needs a careful read

PT-141, also called bremelanotide, is a cyclic heptapeptide with a lactam bridge, which makes it harder to analyse than a linear chain: ring-opened and uncyclised forms can co-elute near the main peak. A figure of 99.939% therefore carries more meaning when it is publicly checkable, and here it is. The report also shows 10.02mg against a 10mg label claim, almost exactly on label. Supplied for in-vitro laboratory research only, not for human or veterinary use.

Published research on bremelanotide cyclic peptide melanocortin is indexed on PubMed.

Intended Use: Strictly for in-vitro laboratory research. Not for use in humans or animals. This product has not been evaluated by the MHRA or FDA.

Why buy PT-141 CoA from UK Peptide Lab

Batch-specific test results

Check the reported method, result and testing source for each batch.

Published batch certificates

Review available lab reports and CoAs on the product page.

UK cold-chain storage

Stored at -20°C from arrival through dispatch.

Same-day UK dispatch

Royal Mail Tracked 24, free UK delivery over £69.

Available PT-141 CoA options

PT-141 10mg research peptide lyophilised powderOut of Stock
Peptides
10mg
£20.99
£2.10/mg
Back in ~10d

Frequently asked questions about buying PT-141 CoA in the UK

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