GHRP-2 Dosage Chart & Schedule
A potent growth-hormone-releasing peptide and ghrelin-receptor agonist studied for stimulating GH release; also investigated as a diagnostic test of pituitary GH reserve.
Research references commonly cite ~100-300 mcg per dose, 1-3x daily, often paired with a GHRH analog; a ~1 mcg/kg 'saturation dose' is a common reference point. Not established for general human use.
Figures describe how GHRP-2 is reported in the research literature and research-community references — not a recommendation for human use. For laboratory research only.
Dosage protocols
Commonly referenced research tiers. Start conservative; every compound and study context differs.
- Frequency
- 1-2x daily
- Weekly total
- 0.7-1.4 mg
- Cycle
- 8-12 weeks, then reassess
A conservative entry near the referenced ~1 mcg/kg saturation dose, above which GH release shows diminishing returns.
- Frequency
- 2-3x daily
- Weekly total
- 2.8-6.3 mg
- Cycle
- 8-12 weeks, then reassess
The most commonly referenced range, often paired with a GHRH analog; higher exposure can modestly raise cortisol and prolactin.
Saturation dose concept
- Research references a ~1 mcg/kg saturation dose for GHRPs, above which additional peptide yields diminishing GH release.
- Higher exposure can modestly raise cortisol and prolactin compared with ipamorelin.
Also a diagnostic agent
- GHRP-2 (pralmorelin) has been studied and used as a diagnostic test of pituitary GH reserve, notably in Japan.
- General human use is not established.
Ready to run this protocol?
Dosing is only as good as the vial. GHRP-2 is third-party tested with published COAs from our top-rated source — reconstitute with confidence and skip the guesswork on identity and purity.
Weekly schedule
A typical week on the standard protocol (2-3x daily).
Dosing day Off
GHRP-2 reconstitution
Based on a standard 10 mg vial: with 2 mL bacteriostatic water = 5,000 mcg/mL (5 mg/mL); 1 unit ≈ 50 mcg.
From vial to injection in 6 steps
Wipe both vial tops
Swab the peptide vial and the bacteriostatic-water vial with fresh alcohol and let them dry.
Draw the water
Pull the planned amount of bacteriostatic water (2 mL) into the syringe.
Add it slowly
Run the water down the inside wall of the vial — don't blast the powder. Swirl gently; never shake.
Let it dissolve
Wait until the solution is fully clear, then refrigerate the vial.
Draw your dose
Pull the calculated units on a U-100 insulin syringe (~4 units for 200 mcg).
Store between uses
Keep the reconstituted vial refrigerated and use within its stable window.
Handling & storage
- Reconstitute with bacteriostatic water (2 mL into a 10 mg vial = 5000 mcg/mL)
- Refrigerate reconstituted; keep the lyophilized powder cool and dark
- A 200 mcg dose draws to ~4 units on a U-100 insulin syringe
GHRP-2 dosing FAQ
How much GHRP-2 per dose?
Research references commonly cite ~100-300 mcg per dose, 1-3x daily, often paired with a GHRH analog. A ~1 mcg/kg saturation dose is a common reference point. Not established for general human use.
How is GHRP-2 reconstituted?
With bacteriostatic water. For example, 2 mL into a 10 mg vial = 5000 mcg/mL, so a 200 mcg dose is about 4 units on a U-100 syringe.
Is GHRP-2 stacked with CJC-1295 or ipamorelin?
A GHRP is commonly referenced alongside a GHRH analog such as CJC-1295 because they act on different receptors; GHRP-2 and ipamorelin are both ghrelin-receptor agonists and are not typically combined with each other.
Does GHRP-2 cause hunger?
It can raise appetite via the ghrelin receptor, though less strongly than GHRP-6. This is a commonly noted research effect.
Sources
Categories: Growth Hormone Secretagogues · Status: Research use only. This page is educational and for laboratory research use only; it is not medical advice.