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 Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan II: Tanning injections, nasal sprays harmful to health Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn MELANOTAN 11 (10mg) Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA)