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 Skin Care & Tanning Skinnymelinx Melanotan II (MT2) Peptide Tanning Injectable. was sold for 350.00 on 30 Jul at 13:28 by Seller619 in Pretoria Tshwane (ID:107841858) 5 days progress. I've been taking 250mcg of Melanotan II and tanning for 10m outside daily. It's working Tighter in the hamstrings, glutes are still holding all of my fat so Imagine just wanting to be jacked and tan and you end up like this? Melanotan II is a peptide that increases the melanin in your skin and can give men a boner that