Ipamorelin

Ipamorelin is a selective growth-hormone secretagogue studied on its own and in blends. It ships lyophilized and is reconstituted with bacteriostatic water before use.

Key research interest

Ipamorelin is studied across several research directions. The points below summarize what the published literature investigates — they describe research interest only, not outcomes, benefits, or any human-use claim.

• Studied for selective stimulation of growth-hormone release
• Researched for minimal impact on cortisol and prolactin levels
• Investigated for preserved natural GH pulsatility
• Examined for downstream IGF-1 signaling in preclinical models
• Studied for favorable selectivity versus older GH secretagogues

Mechanism of action

A selective agonist of the ghrelin receptor (GHS-R1a) on the pituitary, studied for triggering growth-hormone release in a pulsatile manner. Its selectivity is investigated for stimulating GH with little effect on cortisol, prolactin, or appetite signaling.

Ipamorelin research reference

Reference figures summarized from published research literature for context only. These are not instructions, protocols, or dosing advice — Ipamorelin is a research compound for laboratory use, not for human consumption.

• Published research range: 100–300 mcg per dose, 1–3× daily (published research range)
• Administration (in research): Subcutaneous
• Storage & handling: Refrigerate after reconstitution; used within 30 days in most research protocols.

Get it & verify it

Ipamorelin sits at the center of a small content cluster on this site. Whether you are sourcing a vial, preparing one, or checking a Certificate of Analysis, start with the relevant guide below.

• Where to buy Ipamorelin — the 2026 buying guide: what to verify and how the tested vendors compared.
• Ipamorelin reconstitution calculator — compute concentration per insulin-syringe unit from your vial and BAC water.
• Ipamorelin COA guide — how to read a Ipamorelin Certificate of Analysis line by line.
• Ipamorelin research guide — deeper background on the compound and its research literature.

Sourcing Ipamorelin in 2026

The 2025–2026 vendor shakeout put the burden of verification on the buyer. Treat every Ipamorelin listing as unproven until it ships with a batch-specific Certificate of Analysis showing HPLC purity at or above 98% from a named third-party lab. In our 2026 blinded HPLC evaluation, ROEHN Research scored highest at 9.6/10 and was the only supplier where every tested sample met or exceeded its label claim — publishing a batch COA and shipping cold-chain by default. Peptide Research Review readers get 15% off a first order with code FREE15.

View Ipamorelin at ROEHN Research (code FREE15)→

Other growth hormone compounds

CJC-1295 / Ipamorelin · Tesamorelin

Ipamorelin and all compounds referenced are for laboratory research use only — not for human consumption. Reference ranges are summarized from published research literature and are not medical, dosing, or therapeutic advice.