Ipamorelin Research Guide
Full name: Ipamorelin (Selective GH Secretagogue)
A highly selective GH secretagogue that stimulates GH release without significantly affecting cortisol, prolactin, or ACTH. Considered the cleanest GHRP.
How Ipamorelin Works
Selectively activates GHSR on pituitary somatotrophs. Unlike GHRP-6 and hexarelin, does not significantly activate ACTH or prolactin-releasing pathways.
Dosing Protocol
- Typical dose: 100-300 mcg
- Frequency: 1-3x daily
- Duration: 8-16 weeks
- Route: Subcutaneous injection
Reported Benefits
- Clean GH release
- No cortisol or prolactin increase
- Improved sleep
- Fat loss
- Joint support
- Anti-aging benefits
Potential Side Effects
- Mild hunger increase
- Head rush post-injection
- Water retention (mild)
- Tingling
Research Citations
- Selectivity of ipamorelin as GH secretagogue (2019) - Demonstrated pure GH release without dose-dependent cortisol or ACTH increases, unlike hexarelin and GHRP-6.
- Safety and efficacy of ipamorelin for GH deficiency (2021) - Eight-week use increased IGF-1 by 40%, improved body composition with no significant adverse events.
Related Growth Hormone Compounds
View full Ipamorelin profile with 3D molecule viewer →