Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) Melanotan peptide might seem like the cool thing to doit makes you look tan., But these unregulated injections come with real risks., They can cause unpredictable skin changes, including darkening of 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 No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky