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GHRP-2 dosage calculator
GHRP-2 vials are commonly labelled 5 mg, 10 mg. This calculator divides the vial mass by the diluent volume you enter to show concentration, then converts your own target amount into millilitres and syringe units. It states no dose, chooses no amount and stores nothing.
This page is a calculation tool. The amounts you enter are values you decided; this page states no dose and gives no medical advice.
GHRP-2 vial concentration grid
This table answers one arithmetic question: what concentration results when a labelled vial mass is divided by a measured diluent volume? It does not select either value.
| Vial mass | Diluent | Concentration | Same concentration |
|---|---|---|---|
| 5 mg | 0.5 mL | 10,000 mcg/mL | 10 mg/mL |
| 5 mg | 1 mL | 5,000 mcg/mL | 5 mg/mL |
| 5 mg | 1.5 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 5 mg | 2 mL | 2,500 mcg/mL | 2.5 mg/mL |
| 5 mg | 2.5 mL | 2,000 mcg/mL | 2 mg/mL |
| 5 mg | 3 mL | 1,666.67 mcg/mL | 1.667 mg/mL |
| 5 mg | 5 mL | 1,000 mcg/mL | 1 mg/mL |
| 10 mg | 0.5 mL | 20,000 mcg/mL | 20 mg/mL |
| 10 mg | 1 mL | 10,000 mcg/mL | 10 mg/mL |
| 10 mg | 1.5 mL | 6,666.67 mcg/mL | 6.667 mg/mL |
| 10 mg | 2 mL | 5,000 mcg/mL | 5 mg/mL |
| 10 mg | 2.5 mL | 4,000 mcg/mL | 4 mg/mL |
| 10 mg | 3 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 10 mg | 5 mL | 2,000 mcg/mL | 2 mg/mL |
GHRP-2 physical-property record
GHRP-2 is also indexed as pralmorelin
PubChem lists GHRP-2 under the title Pralmorelin with formula C45H55N9O6 and molecular weight 818.0 g/mol. The synonym matters because technical sheets and certificates may prefer pralmorelin while front labels use GHRP-2. A record that stores both names is easier to reconcile and less likely to combine a free peptide with an unspecified salt. Sources: PubChem: GHRP-2 compound record · APExBIO: GHRP-2 technical specification.
APExBIO technical handling
APExBIO lists a molecular weight of 818.0 for its GHRP-2 product, reports DMSO solubility at 80 mg/mL and specifies storage at -20 C. These are catalog-specific laboratory properties. DMSO solubility is not a reconstitution instruction for this calculator, and the page does not use it to preselect a liquid or concentration. Sources: APExBIO: GHRP-2 technical specification.
Solvent notes must retain their laboratory context
A technical sheet may report solubility in a laboratory solvent that is unrelated to a finished or user-facing product. Removing the solvent name while copying the concentration would make the fact misleading. For GHRP-2, keep the solvent, tested concentration, supplier and material form together. The calculator itself accepts the measured volume entered for the actual vial and makes no assumption from the DMSO result. Sources: APExBIO: GHRP-2 technical specification.
Mass arithmetic remains the safe common denominator
The PubChem and APExBIO records can support name, formula, molecular weight and one supplier's technical properties. They do not authenticate a third-party vial or establish sterility and stability. The live tool divides labelled mass by measured volume, then converts a user-owned target into volume markings. It states no dose and does not transform a laboratory solubility figure into a protocol. Sources: PubChem: GHRP-2 compound record · APExBIO: GHRP-2 technical specification.
How to use the calculator
- Read the total mass from your own vial label and enter it in milligrams.
- Enter the diluent volume you actually measured, not an intended or remembered value.
- Enter your own target amount and select the calibration printed on your syringe barrel.
- Record the concentration with the result so the syringe-unit figure remains interpretable later.
Source and identity record
Use the compound reference page and these external database searches when checking identity: PubMed literature search for GHRP-2 · PubChem compound database · PubChem: GHRP-2 compound record · APExBIO: GHRP-2 technical specification. A database record does not authenticate a vial.
Frequently asked questions
How much bacteriostatic water for a 5 mg GHRP-2 vial?
This calculator does not choose a diluent volume. Enter the volume you decided to add to the 5 mg vial and it will show the resulting concentration. The page supplies arithmetic, not an instruction.
How much bacteriostatic water for a 10 mg GHRP-2 vial?
There is no universal volume selected by this page. Use the value you measured or were instructed to use; the calculator then divides the 10 mg label mass by that volume.
Does the GHRP-2 calculator recommend a dose?
No. The target amount is always entered by the user. The tool provides no starting amount, maximum amount, progression, frequency or schedule.
Why does the syringe calibration matter?
A syringe unit is a volume marking. U-100, U-50 and U-40 barrels use different numbers of units per millilitre, so the same solution volume produces different markings.
Related pages
Stop recalculating this every time
PepCycle stores each vial once — mass, diluent volume, concentration — and converts automatically for every entry after that, in both directions, including entries you backdate.
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Last updated · Written by Aykut Yilmaz. All calculations run in your browser; no values are transmitted or stored.