The "Barbie Drug" Has a Dark Side What is Melanotan II the drug that the TGA urges consumers to avoid? You Should Avoid Using Nasal Tanning Sprays Melanotan II A Sun Kissed Look, and a Confident You. Before you take tanning pills, listen to this!, The active ingredient in tanning pills are known as Canthaxanthin, and although this ingredient is approved by the FDA, the high amount of this