Research comparison
Ipamorelin vs GHRP-2
Side-by-side comparison of research status, mechanisms, pharmacokinetics, and administration routes.
Ipamorelin is a selective growth hormone secretagogue and ghrelin receptor agonist. Unlike other GHRPs, it stimulates GH release with high selectivity — producing minimal cortisol, ACTH, or prolactin elevation. It is among the most studied GHRPs for its clean GH pulse profile, making it a preferred research peptide for GH axis studies with reduced side effect concern.
Research Status
Preclinical Research
Half-Life
~2 hours
Molecular Formula
C₃₈H₄₉N₉O₅
Molecular Weight
711.86 Da
CAS Number
170851-70-4
Research Categories
Growth Hormone Axis
Routes of Administration
GHRP-2 is a synthetic hexapeptide and potent ghrelin receptor agonist that stimulates growth hormone release from the pituitary. It produces a strong GH pulse with some elevation of cortisol and prolactin at higher doses. Research includes GH deficiency diagnosis, body composition, sleep quality, and appetite stimulation via its ghrelin-mimetic mechanism.
Research Status
phase2
Half-Life
~1–2 hours
Molecular Formula
C₄₅H₅₅N₉O₆
Molecular Weight
817.99 Da
CAS Number
158861-67-7
Research Categories
Growth Hormone Axis, Sleep & Circadian
Routes of Administration
Full mechanism comparison
Mechanism of action, pharmacokinetics, and research findings comparison available on the Researcher plan.
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