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 There has been a worrying increase in the number of young people using sunbeds. Some people are also using nasal sprays and injections with melanotan II in to boost their tan. This isn't Targeting melanocortin receptors: an approach to treat weight disorders and sexual dysfunction Nature Reviews Drug Discovery Female Sexual Dysfunction: New Treatments on the Way MGH Center for Women's Mental Health Melanotan II reverses memory impairment induced by a short term HF diet ScienceDirect Melanotan II an overview ScienceDirect Topics