Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Avoid those tanning injections! Amy Jayne Aesthetics 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 We are OBSESSING over this Melanotan II transformation After only 14 days using the Melanotan injections combined with one day of laying in the sun, can you believe the difference?? Nothing Understanding Injection Tan and Melanotan 2