Pigmentation Research Peptides
Pigmentation peptides are the category where mass-spectrometry identity verification separates real material from mislabeled substitutes most cleanly — MT-I and MT-II differ by cyclization and by more than 300 Da. Our product pages surface the reported molecular weight and identity method from the batch-linked COA so this differentiation is inspectable rather than asserted.
Class chemistry
Melanotan-I (afamelanotide) is a linear 13-residue α-MSH analog; Melanotan-II is a cyclic hexapeptide with broader melanocortin-receptor activity. The primary chemical differentiator is cyclization — visible on identity-method chromatograms and molecular-weight lines of the COA.
Products in this category
For research use only. Not for human consumption or therapeutic use.