Dr Amy Perkins Dermatology Have you heard of peptides? Did you know they can cause all sorts of problems, including with your skin? I spoke with STV and Scotland Instagram Love Island generation' skin cancer fear No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky FDA Fast Facts Protein tyrosine phosphatase 1B in metabolic diseases and drug development Nature Reviews Endocrinology