Peptides for tanning do exist. Melanotan 1 and Melanotan 2 both work at increasing melanin in the skin. Melanotan 1 takes longer to activate. Melnotan 1 is FDA approved. Melanotan 2 does libido, Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically Melanotan II reverses memory impairment induced by a short term HF diet ScienceDirect Melanotan II Results (With Before And After Pictures) The Tanning Drug Eruptive naevi and darkening of preexisting naevi 24 h after a single mono dose injection of melanotan II Semantic Scholar MELANOTAN EXPLAINED! Benefits, Risks, Side Effects