Amazon.com: Radiant Chemistry : Unveiling the secrets of Melanotan II and it's Effects on Desire eBook : James, Nicolas : Kindle Store MT 2 (Melanotan II) Polar Peptides 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 Wikipedia Unlocking the science behind skin pigmentation Melanotan is a peptide studied for its interaction with melanin pathways the biological systems responsible for skin tone and UV response. From pigmentation signaling