melanotan as an aphrodisiac 2 has human research going back over 25 years showing significant increases in sexual desire and erections in men with erectile dysfunction (PMID: 11035391) Melanotan 2 activates melanocortin receptors, while this Melanotan 2 Erectile Dysfunction Study
Description
Melanin doesnt just give your skin its colour

[43] The study measured clinical signs and the Vaginal Maturation Index (VMI)
The larger portion of militia had gone with Gansevoort to guard provisions on their way to Fort Schuyler, and those who remained, with the boys and old men, unable to defend their lives or property, fled into the fort for protection
(2009) Telaprevir with peginterferon and ribavirin for chronic HCV genotype 1 infection
Lin T, Li K, He W, Chen L, Wang T, Wang N
