GHRP-2 peptide calculator
Pre-filled GHRP-2 dosage and reconstitution math: a 5 mg vial, 2 ml of bacteriostatic water, and the resulting U-100 insulin-syringe units. Adjust the inputs below or open the full calculator.
How to reconstitute GHRP-2
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the GHRP-2 vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Store the reconstituted vial refrigerated (2–8 °C / 36–46 °F) and use within roughly 28 days.
- Draw each dose to the unit mark shown above for your target 100 mcg dose.
About GHRP-2
GHRP-2 is a synthetic ghrelin receptor agonist that strongly stimulates growth hormone release. It is often paired with a GHRH analog to amplify GH pulses.
Half-life: Approximately 15–60 minutes
Typical dose range: 100–300 mcg per injection, up to 3x daily
Class: Ghrelin-mimetic growth hormone secretagogue
GHRP-2 calculator FAQ
Is this a GHRP-2 peptide calculator or a reconstitution calculator?
Both. This GHRP-2 calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.
How much bacteriostatic water for a 5 mg GHRP-2 vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 5 mg GHRP-2 vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 100 mcg GHRP-2 dose?
With the default 5 mg vial and 2 ml BAC-water ratio, the preview above calculates the U-100 syringe units for a 100 mcg dose. Change the dose if your protocol uses a different amount.
Does this GHRP-2 dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether GHRP-2 is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol pre-fills reconstitution, tracks every dose, and flags rotations automatically.
See the app →Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.