Peptide GuideIpamorelin

The Peptide Guide

All muscle & performance peptides

Ipamorelin

MuscleGHRP

Ipamorelin is a selective growth hormone secretagogue that stimulates the pituitary to release growth hormone. It is researched for its specificity compared to older growth hormone-releasing peptides.

What does it do?

Triggers a clean pulse of growth hormone
Can improve sleep quality and overnight recovery
Supports lean body composition over a cycle
Helps training recovery without a heavy or wired feeling
Has fewer extra hormone effects than older GHRPs
Is often stacked with CJC-1295 for a stronger GH signal

How does it work?

Mimics ghrelin enough to tell the pituitary to release GH
Creates a short pulse instead of keeping GH high all day
Stays selective, so cortisol and prolactin usually stay quieter
That GH pulse then raises IGF-1 more gently
Supports repair, sleep, and metabolism through the body’s own GH rhythm
Clears quickly, which is why it is taken more than once in many protocols

What to expect?

Sleep quality is often the first thing people notice
Recovery feels cleaner without a heavy, wired, or bloated feeling
Body composition can drift in the right direction, but it takes patience
Hunger may rise a little after a dose, then settle
Side effects stay quieter than with older GH peptides, which is a big part of why it is used

How it's typically administered

Sub-Q injectionSubcutaneous injectioncommon in research settings

How it's typically dosed

Most common dose100–300 mcg
Frequency1–3 times daily
Cycle duration8–12 weeks

BackAll muscle & performance peptides Full peptide list