Ipamorelin vs Sermorelin
Which should you choose? Here's what you need to know.
The short answer
Both stimulate your body's own growth hormone release, but through different receptors. Sermorelin mimics GHRH for a gentle, natural pulse. Ipamorelin hits ghrelin receptors for a stronger, cleaner GH spike with fewer side effects.
Ipamorelin
Growth HormoneIpamorelin is a selective growth hormone secretagogue that binds ghrelin receptors to trigger GH release. It's known for being one of the "cleanest" GH peptides — it stimulates growth hormone without significantly raising cortisol, prolactin, or appetite.
Choose Ipamorelin if:
You want a stronger GH pulse with minimal impact on cortisol, prolactin, and appetite — or you're stacking with a GHRH peptide for maximum effect.
Sermorelin
Growth HormoneSermorelin is a 29-amino-acid fragment of natural GHRH (growth hormone-releasing hormone). It stimulates the pituitary in a way that closely mimics the body's own GH rhythm. It's one of the most established GH peptides, often used in anti-aging and hormone optimization protocols.
Choose Sermorelin if:
You prefer a gentler, more natural GH stimulation pattern, especially for long-term anti-aging or sleep quality support.
Using both together
Ipamorelin + Sermorelin is a popular stack. Sermorelin provides the GHRH signal while Ipamorelin amplifies the GH pulse through a separate receptor — together they can produce a stronger response than either alone.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
Ipamorelin
Sermorelin
$15.99
Starting from
$22.00
$9.14
Avg. price per mg
$8.67
60
Vendors selling it
46
72 options
In stock now
55 options
9.0/10
Top trust score
8.7/10
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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.