Kisspeptin-10
Purrptide digest
Kisspeptin sits at the very top of the reproductive hormone cascade — it's the signal that triggers GnRH release, which then triggers LH and FSH, which then triggers everything downstream. It's being studied as a more physiologically natural fertility treatment than directly injecting downstream hormones, since it works through the body's actual signaling hierarchy. Research also points to a role in puberty onset, since mutations affecting kisspeptin signaling are linked to delayed or absent puberty in humans.
What this means for you
Mostly relevant in fertility treatment research contexts rather than general wellness use — still actively being studied for clinical application.
Working at the top of the HPG axis rather than downstream offers a more physiologically natural approach to certain fertility interventions.
Kisspeptin neurons are essentially the master regulator of the entire reproductive hormone cascade — a foundational discovery in reproductive endocrinology.
Fertility clinics are a growing, well-funded market, and an upstream regulatory peptide is a genuinely novel mechanism to bring to it.
For the nerds
Kisspeptin-54 stimulates gonadotropin release in healthy men
Journal of Clinical Endocrinology & Metabolism · DOI: 10.1210/jc.2005-1547
Read full paper on PubMed →