HPLC & Mass Spectrometry Verified Batch-Specific Certificate of Analysis (CoA) Included Sterile Lyophilised Powder | GMP Manufactured Fast Dispatch to Ireland | Peptides Ireland Stock Melanotan 1 and Afamelanotide , is a synthetic tridecapeptide with the sequence Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2, representing a stabilised analogue of the endogenous tridecapeptide -melanocyte-stimulating hormone (-MSH) in which methionine at position 4 is replaced by norleucine (Nle4) to prevent oxidative inactivation, and phenylalanine at position 7 is replaced by D-phenylalanine (D-Phe7) to confer resistance to endopeptidase cleavage and stabilise the pharmacophore conformation required for high-affinity MC1R binding
A study measuring only serum KLOW concentration would conclude the compound is "gone" by 48 hours, but tissue samples taken at 7296 hours post-administration still show elevated phosphorylated AMPK levels, indicating ongoing metabolic effects
Hypereosinophilic syndrome
10.1515/jtim-2025-0049 68
Both peptides need careful, accurate context
Dihexa reversed cognitive deficits induced by scopolamine (an anticholinergic agent) in rodent models, suggesting relevance to cholinergic aspects of cognitive impairment
