HCG vs Kisspeptin
Which should you choose? Here's what you need to know.
The short answer
HCG and Kisspeptin are both sexual health peptides, but they work differently. Human Chorionic Gonadotropin, a hormone that mimics LH to stimulate testosterone production. Commonly used alongside TRT to maintain testicular function. 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 20 Sep 2026 Peptide Compare tracked 3 vendors selling HCG and 45 selling Kisspeptin. Vendors do not agree on the unit they price HCG in, so a price per mg is not comparable for it. Kisspeptin is cheapest in stock at $2.93 per mg at Modern Research.
HCG
Sexual HealthHuman Chorionic Gonadotropin, a hormone that mimics LH to stimulate testosterone production. Commonly used alongside TRT to maintain testicular function.
Kisspeptin
Sexual HealthA neuropeptide that regulates the reproductive hormone cascade by stimulating GnRH release. Studied for fertility and hormonal health applications.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 20, 2026.
HCG
Kisspeptin
$28.99
Starting from
$24.99
not comparable
Avg. price per mg
$7.86
3
Vendors selling it
45
2 options
In stock now
37 options
4.0/10
Top trust score
9.1/10
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
Some outbound links may earn us a commission. Vendors cannot pay to improve rankings.
Where does this data come from?
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.