Up to a million Britons use steroids for looks not sport Health The Guardian Medical & Clinical Research 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. No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Understanding Peptides: