Melanotan II is a peptide that supports melanin production meaning your glow can start from the inside out (without living out in the sun or tanning beds). Our WCC nurses That quick tan injection is NOT worth the risk., Melanotan peptide injections stimulate pigment cells, and its use has been linked to rapid changes in moles, including the potentially fatal skin No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn