Growth Hormone & PerformanceGrade B
Ipamorelin
A selective growth hormone secretagogue valued for stimulating GH release without meaningful cortisol or prolactin elevation.
- Regulatory status
- Not approved
- Half-life
- ~2 hours
- Route
- Subcutaneous
- Evidence
- Limited human trials or approved outside the US
Mechanism of action
Selective ghrelin (GHS-R1a) agonist producing pulsatile GH release from the pituitary.
Studied and reported uses
- Body composition
- Sleep quality
- Recovery support
Dosing information
Common range200–300 mcg, 1–3x daily
TimingFasted, before bed and/or post-training
Ranges are reported from literature and clinical labeling for reference only. They are not a dosing recommendation.
Side effects
- Head rush
- Water retention
- Hunger
- Tingling in hands
Research evidence
Mechanistic studies
Selective GH release without ACTH/prolactin rise.