Ipamorelin vs Hexarelin
Ipamorelin and hexarelin sit at opposite ends of the GHRP spectrum. Ipamorelin is the gentle, selective option; hexarelin is the most potent, with the strongest GH release but the fastest desensitization.
| Ipamorelin | Hexarelin | |
|---|---|---|
| Compound class | Selective GHRP (ghrelin-receptor agonist) | Potent GHRP |
| Primary target | GHS-R (ghrelin receptor) | GHS-R (ghrelin receptor) |
| Category | Growth Hormone | Growth Hormone |
| Administration | Subcutaneous, 1-3x daily | Subcutaneous, 1-2x daily |
| Research focus | Clean GH pulse, minimal cortisol/prolactin | Strongest GH release; faster desensitization |
Key differences
- Potency: hexarelin produces the strongest GH release of the common GHRPs; ipamorelin is milder and more selective.
- Desensitization: hexarelin's receptors desensitize faster, limiting sustained research use; ipamorelin sustains better.
- Side profile: ipamorelin keeps cortisol and prolactin minimal; hexarelin can raise them more.
- Both are subcutaneous GHRPs dosed around meals or at night.
Which is right for your research?
Ipamorelin is the clean, sustainable GHRP; hexarelin is the maximum-potency option when peak GH release matters more than longevity of effect.
Frequently asked questions
Which is stronger, ipamorelin or hexarelin?
Hexarelin produces a stronger GH release, but it desensitizes faster. Ipamorelin is milder, cleaner, and more sustainable.
Does hexarelin cause more side effects?
Hexarelin can raise cortisol and prolactin more than ipamorelin, which is prized for its selectivity.
Are they the same class of peptide?
Yes — both are GHRPs (ghrelin-receptor agonists), differing in potency and desensitization profile.
For Research Use Only. All products are sold as research chemicals for in-vitro laboratory study. Not for human consumption, medical, veterinary, or household use.