Melanotan II is the product that's been dubbed the "Barbie drug" on social media, and promises to give users a tan without the sun but it can have serious side effects including, in rare cases, Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan What It Is and Its Relation to Skin Cancer Tanning drug, molecular model Stock Image Science Source Images Melanotan 2 Injectable Peptide Melanotan II synthetic tanning drug mo Stock Image Science Source Images