Which should you choose? Here's what you need to know.
Gonadorelin and Kisspeptin are both sexual health peptides, but they work differently. A synthetic form of gonadotropin-releasing hormone (GnRH) used to stimulate LH and FSH production. Used clinically alongside TRT to maintain fertility. A neuropeptide that regulates the reproductive hormone cascade by stimulating GnRH release. Studied for fertility and hormonal health applications. Compare vendor pricing and availability below.
On 19 Sep 2026 Peptide Compare tracked 11 vendors selling Gonadorelin, cheapest in stock $6.54 per mg at Paramount Peptides, and 45 selling Kisspeptin, cheapest $2.93 per mg at Modern Research.
A synthetic form of gonadotropin-releasing hormone (GnRH) used to stimulate LH and FSH production. Used clinically alongside TRT to maintain fertility.
A neuropeptide that regulates the reproductive hormone cascade by stimulating GnRH release. Studied for fertility and hormonal health applications.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 19, 2026.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.