GHRP-2
Also known as: Pralmorelin
A growth-hormone-releasing peptide that strongly stimulates GH, with some appetite increase.
GHRP-2 at a glance
| Name | GHRP-2 |
|---|---|
| Also known as | Pralmorelin |
| Category | Growth-hormone axis |
| Type | Peptide |
| Sequence | Hexapeptide GH secretagogue |
| Typical dose | ~100–200 mcg |
| Frequency | 1–3× daily |
| Route | Subcutaneous injection |
| Half-life | Short (~30 minutes). |
Overview
GHRP-2 is a potent GH secretagogue that reliably raises growth hormone, with a modest bump in appetite and, at higher doses, cortisol/prolactin. It is often stacked with a GHRH (like CJC-1295 no DAC) for a stronger, more natural pulse.
How it’s thought to work
- Activates the ghrelin/GH-secretagogue receptor to release GH.
- Mildly stimulates appetite; can nudge cortisol/prolactin at higher doses.
Researched uses
- Raising endogenous GH/IGF-1
- Body-composition and recovery research
Commonly cited protocol
| Typical dose | ~100–200 mcg |
|---|---|
| Frequency | 1–3× daily |
| Route | Subcutaneous injection |
| Notes | Commonly combined with a GHRH. |
Reconstitution
Often a 5 mg vial. 5 mg with 2 mL water = 2.5 mg/mL, so 100 mcg = 4 units on a U-100 syringe.
GHRP-2 dosage calculator
The calculator below is pre-filled with GHRP-2’s commonly cited vial size and dose. Adjust the vial amount, bacteriostatic water, or dose to match your own vial — it will show the exact insulin-syringe units to draw, the concentration, and how many doses the vial holds.
Add 5 mL of bacteriostatic water to your 5 mg vial. That gives you about 50 doses of 100 mcg. For each dose, draw 10 units into a 100-unit insulin syringe.
See the full GHRP-2 dosing chart (units for every dose & water amount), or open the full peptide calculator →
Cautions
- Not approved for human use.
- Appetite increase; possible cortisol/prolactin rise at higher doses.
- Caution with active cancer.
GHRP-2 FAQ
What is GHRP-2?
A growth-hormone-releasing peptide that strongly stimulates GH, with some appetite increase.
How does GHRP-2 work?
Activates the ghrelin/GH-secretagogue receptor to release GH. Mildly stimulates appetite; can nudge cortisol/prolactin at higher doses.
What is GHRP-2 used for?
Raising endogenous GH/IGF-1; Body-composition and recovery research.
What is a typical GHRP-2 dose?
~100–200 mcg, 1–3× daily, Subcutaneous injection. This is a commonly cited figure for context only, not medical advice.
How do you reconstitute GHRP-2?
Often a 5 mg vial. 5 mg with 2 mL water = 2.5 mg/mL, so 100 mcg = 4 units on a U-100 syringe.
What is the half-life of GHRP-2?
Short (~30 minutes).