Is melanotan II (afamelanotide) safe to use for skin darkening? Melanotan II reverses memory impairment induced by a short term HF diet ScienceDirect Melanotan II in Santa Barbara, CA Eternity Health Partners Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than Melanotan II Peptide Elite Beauty Toledo Melanotan 2 is an unregulated, unsafe substance often advertised as a self tanning aid., Use of Melanotan 2 has been linked to serious side effects including loss of vision, moles, stroke, muscle