Kisspeptin

What It Is

A family of neuropeptides encoded by the KISS1 gene that bind the KISS1R (GPR54) receptor on hypothalamic GnRH neurons. Studied as the principal upstream regulator of the reproductive endocrine axis in preclinical and clinical research.

How It Works

Kisspeptin binds KISS1R on hypothalamic neurons

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GnRH neurons are stimulated

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Pituitary LH and FSH release is initiated

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Downstream gonadal steroidogenesis is studied

What Researchers Study It For

HPG-axis (reproductive axis) investigations

GnRH pulsatility and feedback studies

Puberty-onset research models

Hypothalamic neuropeptide signaling studies

Common Research Protocols

In published clinical research, kisspeptin variants (most commonly kisspeptin-10 and kisspeptin-54) have been administered via intravenous infusion or subcutaneous injection, with dosing protocols designed to map receptor sensitivity and LH-pulse responses.

Community Interest Areas

The reproductive-endocrinology research community considers kisspeptin a foundational discovery — loss-of-function mutations in KISS1R cause hypogonadotropic hypogonadism, establishing it as the master regulator upstream of GnRH. It is now widely studied in models of puberty, fertility, and the hypothalamic control of reproductive function.

Upstream of GnRH Master regulator of the hypothalamic reproductive axis

KISS1R Agonist at the GPR54 receptor on hypothalamic neurons

For research purposes only. Not intended for consumption, clinical application, or diagnostic use.

What It Is

How It Works

What Researchers Study It For

Common Research Protocols

Community Interest Areas

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Are Peptides Safe?