The master switch of reproductive hormones. Kisspeptin sits at the very top of the hormonal cascade — controlling GnRH, which controls LH and FSH, which control ovulation and cycle regularity.
Kisspeptin-10 binds to the KISS1R receptor on GnRH neurons in the hypothalamus, triggering the release of gonadotropin-releasing hormone. This initiates the entire HPG axis cascade: GnRH → LH/FSH → estrogen/progesterone. In women with PCOS, kisspeptin signaling is dysregulated, contributing to anovulation and irregular cycles.
PCOS affects 1 in 10 women of reproductive age, making it the most common endocrine disorder in women. Kisspeptin-10 addresses the root of the hormonal cascade rather than downstream symptoms. A 2014 Journal of Clinical Investigation study confirmed kisspeptin as the mediator of sex steroid feedback — meaning it's the switch that tells your brain whether hormone levels are balanced.
Kisspeptin-10 is generally well-tolerated in clinical studies. Reported side effects include mild injection site reactions, flushing, and transient changes in reproductive hormone levels. Research is ongoing, and long-term safety data in women is limited.
This peptide is part of our Hormonal Balance hub — explore all peptides for this use case.
Kisspeptin-10 targets the upstream regulator of reproductive hormones (GnRH), which is dysregulated in PCOS. While not FDA-approved for PCOS, its mechanism directly addresses the hormonal cascade dysfunction that drives PCOS symptoms.
Kisspeptin is being actively studied as a safer alternative to hCG triggers in IVF protocols, with early data suggesting lower risk of ovarian hyperstimulation syndrome. Always discuss with your reproductive endocrinologist.
Kisspeptin-10 is administered via subcutaneous injection. Dosing protocols vary and should be determined by a healthcare provider familiar with peptide therapy.
Medical Disclaimer: This profile is for educational purposes only. It is not medical advice, a treatment recommendation, or a prescription guide. Always consult a licensed healthcare provider before starting any peptide therapy. Evidence ratings reflect the current state of published research and may change as new data emerges.
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