Melanocortins and Their Potential for the Treatment, Prevention and Amelioration of Complications of Diabetes Tanning from the inside out = Highly Dangerous and Illegal! Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News Targeting melanocortin receptors: an approach to treat weight disorders and sexual dysfunction Nature Reviews Drug Discovery Frontiers Activation of Melanocortin 4 Receptor Inhibits Both Neuroinflammation Induced by Early Exposure to Ethanol and Subsequent Voluntary Alcohol Intake in Adulthood in Animal Models: Is BDNF the Key Mediator?