GHRP-6 vs Ipamorelin
Which should you choose? Here's what you need to know.
The short answer
Both release growth hormone through ghrelin receptors, but ipamorelin is much more selective — it boosts GH without spiking hunger, cortisol, or prolactin. GHRP-6 gives a big appetite boost alongside GH release.
On 20 Sep 2026 Peptide Compare tracked 22 vendors selling GHRP-6, cheapest in stock $2.80 per mg at Ruo Bio, and 60 selling Ipamorelin, cheapest $1.87 per mg at Sunrise Bioresearch.
GHRP-6
Growth HormoneGHRP-6 is one of the earlier growth hormone releasing peptides. It's a potent GH secretagogue that also significantly stimulates appetite through ghrelin pathways. It raises cortisol and prolactin alongside growth hormone, which makes it less "clean" but useful for people who want the hunger boost.
Choose GHRP-6 if:
You actually want the appetite stimulation (e.g., you're underweight or in a bulking phase) and don't mind the cortisol and prolactin bump.
Ipamorelin
Growth HormoneIpamorelin is a newer, more selective growth hormone secretagogue. It releases GH at a comparable rate to GHRP-6 but without meaningfully raising cortisol, prolactin, or appetite. It's easier to use during cutting or body recomposition phases.
Choose Ipamorelin if:
You want growth hormone release with the fewest side effects — no hunger spikes, no cortisol or prolactin elevation.
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.
GHRP-6
Ipamorelin
$14.00
Starting from
$15.99
$4.96
Avg. price per mg
$8.34
22
Vendors selling it
60
15 options
In stock now
65 options
9.1/10
Top trust score
9.0/10
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Our top-rated vendor for each, based on trust scores, purity testing, and price.
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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.