Melanotan II: Tanning injections, nasal sprays harmful to health Melanotan 2 Day 4: Whacky Side Effects. , I am cutting back from daily use and probably using once a week from here on out. , Zero appetite, Fatigue, And what I think was sleep paralysis , And yes Tanning from the inside out = Highly Dangerous and Illegal! Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such Melanotan 2 Injectable Peptide Amazon.com: 9 in 1 Melatonin Sleep Aid for Adults USA Made, Lab Tested with Melatonin 5mg and 108mg Magnesium for Sleep TRAACS, Ashwagandha, Valerian Root, GABA, 5HTP, Herbal Sleep Supplement, Vegan, 60