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 Brown Spots and Freckles Faciem Dermatology & Medical Clinic 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. Illegal tanning nasal spray not a 'harmless alternative' to sunbaking, says TGA ABC News