Ipamorelin
Growth Hormone Releasing Peptide
A selective growth-hormone secretagogue, noted for minimal effect on cortisol and prolactin relative to older GHRPs.
At a glance
- Category
- Growth Hormone
- Half-life
- ~2 hours
- Typical vial sizes
- 2 mg · 5 mg · 10 mg
- Commonly cited dose
- 100–300 mcg
- Frequency
- one to three times daily
- Routes
- Subcutaneous
A 2 mg vial, worked through.
Reconstituting a 2 mg vial of Ipamorelin with 2 mL of bacteriostatic water gives 1 mg/mL. A 100 mcg dose is then:
Storage
- Lyophilised (unmixed)
- Refrigerated, protected from light.
- Reconstituted
- Refrigerate at 2–8°C. Commonly cited as usable for ~30 days.
What people log it against
Outcomes users commonly track alongside this compound. Listing them is not a claim that it produces them.
- Sleep quality
- Recovery
- Body composition
Read alongside Ipamorelin
Compounds this one is commonly compared with, combined with, or mistaken for. Listing a pairing is not a suggestion to run them together.
- CJC-1295 (no DAC)Research use onlyThe most commonly paired secretagogue combination — a GHRH analogue alongside a GHRP.
- CJC-1295 with DACResearch use onlyAlso paired, but the DAC variant’s much longer half-life changes the injection schedule entirely rather than just the dose.
- SermorelinPrescription / compoundedBoth used as growth-hormone secretagogues through different mechanisms, and frequently compared on that basis.
References
Each source below establishes only the specific claim noted with it, last checked 2026-08-13. Dose ranges, frequencies and storage times reflect what circulating protocols commonly state and are not established by these references.
- Gobburu et al., PK/PD modelling of ipamorelin in human volunteers — PMID 10496658
Dose-escalation study in healthy male volunteers. Dose-proportional PK with a short terminal half-life of 2 hours, clearance 0.078 L/h/kg, Vss 0.22 L/kg. Confirms halfLifeHours 2 — one of the few research-only entries here with genuine human PK.
Run your own numbers
Pick Ipamorelin from the preset list to start from a typical vial.
As printed on the vial label
How much you inject into the vial
1000 mcg = 1 mg
Fills in a common vial size and the low end of commonly cited protocols. Always check against your own vial.
on a 1 mL U-100 insulin syringe
- Concentration
- 5 mg/mL
- Volume
- 0.05 mL
- Doses in this vial
- 40
Keep this vial. VialPal holds the concentration, counts down the doses left in it, and logs the ones you actually took.
VialPal does the arithmetic — it does not tell you what to take. Dose decisions belong between you and a qualified clinician.