Who's tan is reay for summer. This peptide can help. Now that peptides are in fashion let's talk about tanning peptide melanotan II and . MT2 is a peptide recreationally used to increase melanin production via melanocortin agonism to increase tanning Melanotan 2 Achieve Sunless Tan Naturally and Safely Been testing out MT 1 peptide (Melanotan I) lately and honestly this stuff works. Originally developed for skin protection and UV resistance, but most people know it now for boosting melanin and giving 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 Insights into Tanning Biology and Tanning Products JCAD The Journal of Clinical and Aesthetic Dermatology