Ipamorelin
- •what is Ipamorelin
- •Ipamorelin vs GHRP-2
- •Ipamorelin CJC-1295
- •selective GHRP
- •Ipamorelin research
- Ipamorelin(Selective GH secretagogue)· Muscle Growth & Performance
- Ipamorelin is the 'clean' GHRP — the one researchers pick when they want a GH pulse without the side conversations. It does one job (GH release) and nothing else.
What is it?
Ipamorelin is a synthetic pentapeptide growth hormone secretagogue and selective ghrelin receptor agonist. It was developed specifically to stimulate GH release without the cortisol, prolactin, or appetite effects associated with earlier GHRPs.
In plain English
Ipamorelin is the 'clean' GHRP — the one researchers pick when they want a GH pulse without the side conversations. It does one job (GH release) and nothing else.
How it works
Binds the growth hormone secretagogue receptor (GHS-R1a) on pituitary somatotrophs, triggering GH release. Unlike GHRP-6 and GHRP-2, it does not meaningfully stimulate cortisol, prolactin, or ACTH at standard research doses, and has minimal effect on ghrelin-driven appetite signaling.
What researchers study
- •Selective GHS-R activation studies
- •CJC-1295 + Ipamorelin synergy
- •Body composition and recovery research
- •Sleep architecture
- •Comparison with GHRP-2, GHRP-6, and Hexarelin
What the internet talks about
Universally described as the 'starter GHRP.' Almost every CJC-1295 conversation pairs it with Ipamorelin. Forums consistently recommend it over GHRP-6 (hunger) and Hexarelin (desensitization) for sustained research protocols.
Bro-science translation
“The clean GH-pulse peptide.”
Commonly compared to
Common stack discussions
The canonical GH stack is CJC-1295 + Ipamorelin. Compared to GHRP-2 (more potent but more cortisol/prolactin), GHRP-6 (appetite stimulation), and Hexarelin (desensitization risk).
Related peptides
Related categories
Frequently asked questions
Quick summary
Ipamorelin is a selective pentapeptide GHRP studied for clean, side-effect-light GH release, most often paired with CJC-1295.