Glossary
GHRP
Also called Growth hormone-releasing peptide, Ghrelin mimetic, GHS-R agonist
A family of small synthetic peptides that trigger growth hormone release through the ghrelin receptor. GHRP-2, GHRP-6 and ipamorelin are examples.
In more detail
GHRPs act on the growth hormone secretagogue receptor, the same receptor ghrelin uses. Older members such as GHRP-6 are known for raising appetite, a ghrelin effect. Ipamorelin was described in 1998 as the first selective one: in the original animal work it released growth hormone without raising ACTH or cortisol beyond what GHRH itself does.
Why it matters
GHRPs and GHRH analogs hit different receptors, which is why they are stacked. They are banned in sport under the WADA list.
Related terms
- GHRHThe hormone from the hypothalamus that tells the pituitary to release growth hormone. Sermorelin, tesamorelin and CJC-1295 are GHRH analogs.
- SecretagogueAnything that makes a gland secrete a hormone. In peptide talk it almost always means a growth hormone secretagogue: a compound that prompts your own pituitary to release growth hormone.
- Peptide blendTwo or more peptides sold together in one vial, such as BPC-157 with TB-500. Every draw delivers all of them in a fixed ratio.
Peptides where this comes up
Sources
Each source is labeled by where the information comes from. How we label sources
- Reference workGrowth hormone secretagogue(opens in a new tab)
Wikipedia · checked
- Clinical studyRaun K et al. 1998, Ipamorelin, the first selective growth hormone secretagogue, Eur J Endocrinol(opens in a new tab)
PubMed · checked
- RegulatoryProhibited List 2026(opens in a new tab)
World Anti-Doping Agency · checked
Updated