Melanotan I is a synthetic agent similar to the body's hormone
that regulates skin pigmentation, can be combined with UV-B light
or sunlight, and appears to act synergistically in the tanning
response to light.
Melanotan I is a synthetic super-potent derivative of its natural counterpart, alpha-melanocyte-stimulating hormone, one of a family of hormones that induce pigmentation in the human body. According to studies Melanotan 1 can essentially induce skin tanning.
Melanotan II is an analog of the peptide hormone alpha-melanocyte stimulating hormone (?-MSH), this hormone provides a therapeutic sunless tan with the ability to lower the risk of skin cancer, (MSH) also plays an important role in regulating sexual arousal in both men and women. Melanotan II is popular with athletes and fitness enthusiasts who wish to have the look of a tanned body, but would rather not expose themselves to the potential harmful rays of the sun.
PT-141 (Bremelanotide) is the generic term for a new medication for use in treating sexual dysfunction in men (erectile dysfunction or impotence) as well as sexual dysfunction in women (sexual arousal disorder).