Buy Melanotan I 10mg Online

Buy Melanotan I 10mg online and what arrives is a sealed lyophilized vial of afamelanotide (CAS: 75921-69-6) containing 10mg net peptide, with a lot-matched certificate of analysis listing purity by HPLC. Melanotan I is a linear 13-amino-acid analogue of α-melanocyte-stimulating hormone that binds the melanocortin 1 receptor and drives eumelanin synthesis without the UV-induced DNA damage that normally triggers pigmentation. Two substitutions against native α-MSH give the 10mg vial its shelf stability: norleucine replaces methionine at position 4, and D-phenylalanine replaces L-phenylalanine at position 7, both blunting the serum protease cleavage that degrades native α-MSH within minutes. The reason to buy Melanotan I 10mg rather than Melanotan II is receptor selectivity — Melanotan I acts on MC1R and does not meaningfully engage MC3R or MC4R, the receptors behind the appetite and erectile effects reported with Melanotan II. Melanotan I is also the only compound in this class with an approved clinical form: afamelanotide is marketed as Scenesse, approved by the FDA in October 2019 as a 16mg subcutaneous implant for erythropoietic protoporphyria. That approval covers the implant and that indication only, and has no bearing on research material sold lyophilized. Molecular weight: 1,646.85 Da.