Melanotan II Results (With Before And After Pictures) The Tanning Drug One month. Minimal sun. Real results. These results are after a 10 day loading phase and just 1 month of our Barbie Peptide (Melanotan II) with little to no sun exposure. No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky 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 as injectable melanotan II C50H69N15O9 CID 92432 PubChem