Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Melanotan 2 10mg 10mg Peplogix Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Avoid nasal tanning sprays or nasal tanners entirely. These products promise an all over tan without sun exposure but they are unregulated, can be unsafe, and contain potentially risky substances like Melanotan 2.