Kisspeptin-10
Hormone Restoration
In plain English
Kisspeptin is a natural signaling molecule that sits upstream of the body's reproductive hormone system and helps switch on the release of sex hormones. It is being studied for effects on reproduction and sexual desire, but its use in clinics is investigational. Any current use is experimental and not an approved therapy.
The science
Kisspeptin is a hypothalamic neuropeptide (product of the KISS1 gene) that signals through the KISS1R/GPR54 receptor to stimulate GnRH neurons, positioned upstream of the reproductive axis. Human evidence is limited and largely mechanistic/early-phase: controlled administration studies show kisspeptin stimulates gonadotropin release and, in a randomized crossover fMRI study of men (Comninos 2017), enhanced limbic brain responses to sexual and bonding stimuli with correlated improvements in reward, drive, and reduced sexual aversion. There are no large efficacy or long-term safety trials, and no FDA-approved kisspeptin product; all clinical use is investigational/compounded and off-label. Reported short-term tolerability is good in research settings, but durable clinical benefit for libido or hormone restoration is unproven.