Lets look at sunless tanning, ., Firstly theres the injections and nasal sprays which typically have an active ingredient called melanotan. This is a synthetic compound that stimulates the Melanotan II Nasal Spray Achieve Tanned Skin & Wellness Benefits Buy Melanotan II for Erectile Dysfunction: What the Evidence Shows and Practical Considerations Melanotan II Wikipedia Been testing out MT 1 peptide (Melanotan I) lately and honestly this stuff works. Originally developed for skin protection and UV resistance, but most people know it now for boosting melanin and giving MELANOTAN II (MT 2) VIAL, (10MG) High Purity Peptide Pure Bio Labs