Melanotan 2 Tanning Peptides

Melanotan 2 (also known as Melanotan II) is a synthetically produced variant of a peptide hormone naturally produced in our body that stimulates melanogenesis, which is responsible for pigmentation of the skin. This peptide hormone, called alpha-Melanocyte stimulating hormone or MSH, activates certain melanocortin receptors in the process of exerting its effects. Indeed, MSH also brings out potent benefits of lipid metabolism, appetite, and sexual libido via these melanocortin receptors. Hence, Melanotan 2 has been shown in studies to exhibit appetite suppressant, lipolytic, and libido-enhancing effects in addition to promoting skin tanning. Melanotan 2 has been researched extensively to use in protecting against the harmful effects of ultraviolet radiation from sunlight because of its melanogenesis-stimulating features. 

Additionally, Melanotan 2(MT-2) and a similar synthetically produced variant, called PT-141, have been studied as a potential remedy for the treatment of sexual dysfunction; specifically, male erectile dysfunction.

Functions:

treatment of sexual dysfunction, 
 self-tanning without UV exposure