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 Freckles and Solar Lentigos Stratum Clinics I accidentally undid years of skin work and didn't realize it until it was too late. At the beginning of November, I started taking melanotan 2 and honestly? I loved it. Freckles Dr Darren McKeown 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 as injectable Melanotan II: Tanning, Sexual Health Benefits, & Safety Concerns