Growth Hormone

GHRP-2 Dosing & Reconstitution Calculator

Growth hormone releasing peptide with strong GH release and mild appetite increase.

TL;DR - GHRP-2 is a growth hormone peptide with a typical starting dose of 100 µg. For a 5 mg vial, add 2 mL bacteriostatic water to yield 2500 µg/mL.
100 µg
Start Dose
5 mg
Vial
2 mL
BAC Water
2500
µg/mL
100 µg draw on a 100-unit insulin syringe
01020304050607080901004 IUascendpeptide.org
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Frequently Asked
How do I reconstitute GHRP-2?
Add 2 mL of bacteriostatic water to a 5 mg vial, injecting slowly down the inside wall. Swirl gently; never shake. This yields a concentration of 2500 µg/mL.
What is the recommended dose of GHRP-2?
A typical research dose is 100 µg. Consult the ASCEND calculator for your specific vial concentration and draw volume.
How many doses are in a GHRP-2 vial?
A 5 mg vial reconstituted with 2 mL BAC water yields approximately 50 doses at 100 µg each.
How many IU is 100 µg of GHRP-2 on a syringe?
With a 5 mg vial reconstituted in 2 mL bacteriostatic water, the concentration is 2500 µg/mL. For a 100 µg dose: Volume = 100 µg ÷ 2500 µg/mL = 0.04 mL. Draw to the 4 line on a 100-unit insulin syringe. You can adjust these values in the ASCEND calculator for any vial size.
What does a GHRP-2 dosage calculator do?
A GHRP-2 dosage calculator converts your vial size and BAC water volume into an exact syringe draw in IU. Enter your vial strength (5 mg), reconstitution volume (2 mL), and target dose to get the precise line to draw on an insulin syringe.
What is the GHRP-2 reconstitution calculator formula?
Draw volume (mL) = Dose (µg) divided by Concentration (µg/mL). For a 5 mg vial with 2 mL BAC water: concentration = 2500 µg/mL. For a 100 µg dose, the ASCEND calculator gives the exact IU line on your syringe instantly.
Peptide Intelligence
What is the half-life of GHRP-2?
GHRP-2 has a short half-life of approximately 30 minutes, requiring 2–3 daily injections for sustained GH elevation. It is among the most potent GHRPs available and is often used when maximum GH pulse amplitude is desired.
How does GHRP-2 compare to GHRP-6 in terms of side effects?
GHRP-2 causes significant cortisol and prolactin elevation similar to GHRP-6, but causes less appetite stimulation. GHRP-6 has stronger ghrelin activity driving hunger; GHRP-2 is preferred when appetite side effects are a concern.
Can GHRP-2 be stacked with CJC-1295?
GHRP-2 combined with CJC-1295 (No DAC) is a potent GH-releasing combination. The GHRH analog amplifies the pituitary's response to GHRP-2, producing GH pulses significantly larger than either agent alone. Standard stacking ratio is 1:1 by microgram.
Primary Sources
GH Release Study (Endocrinology 1995)
Data last reviewed 2026-06-03 · Methodology →
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