Warning issued over increased use of 'Barbie drug' 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. Melanotan II Skin Pigmentation & Libido No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky