What is the difference between Melanotan 1 and Melanotan 2?_Chemicalbook 50 Weeks on Melanotan2. Used to be Type 1 and never able to tan. Have never felt better! Beard color change is epic : r Melanotan2 Imagine just wanting to be jacked and tan and you end up like this? Melanotan II is a peptide that increases the melanin in your skin and can give men a boner that Melanotan II reverses memory impairment induced by a short term HF diet ScienceDirect