Kisspeptin · Reproductive-endocrinology research

Kisspeptin is a peptide produced in the hypothalamus that signals the release of gonadotropin-releasing hormone (GnRH), which in turn drives LH, FSH and sex-hormone production. Because it sits at the top of the reproductive hormone axis, it has been studied in fertility, hypogonadism and, more recently, sexual-function research.

It is one of the better-studied research peptides in humans — but as a research tool and diagnostic candidate, not as an approved medicine.

Human studies have used kisspeptin infusions or injections to trigger hormone release in controlled settings: ovulation induction in IVF research, testing of the hormonal axis, and small studies of brain response to sexual stimuli. Effects are short-lived and dose-dependent, and the studies are small.

In the United States this compound is not an FDA-approved drug for any use. It is not lawfully sold for human use as a "research chemical", and whether a licensed provider can consider it depends on federal compounding rules and state law, both of which change. This is a general note, not legal advice.