GHRP-2 is more potent and does not increase appetite as much as GHRP-6. GHRP-6 is better known for its appetite-stimulating effect.

GHRP-2 Calculator

GHRP-2 (also known as Pralmorelin) reconstitution and dosage reference — calculate vial concentration, BAC water volume, and exact syringe units below.

GHS

Key takeaways

At the reference preset of a 5mg GHRP-2 vial reconstituted with 2 mL of bacteriostatic water, a 0.2mg dose measures 8 units on a U-100 insulin syringe.

GHRP-2 is a synthetic ghrelin agonist that stimulates GH release.

Concentration: 2.5 mg/mL
Draw volume: 0.08 mL
Units (U-100): 8
Doses per vial: ≈ 25
Reference preset: 5mg · 2mL · 0.2mg

Reference values from the default preset — adjust the calculator below for your vial.

U-100 scale · draw to 8 units

How to use this calculator›

1. Vial — the peptide amount printed on the vial, in milligrams.
2. BAC water — the bacteriostatic water added to the vial. More water means a lower concentration and a larger, easier-to-read draw.
3. Dose — the single dose being measured, in milligrams.
4. Syringe — the barrel being drawn into. The diagram rescales to that syringe, so the same dose sits at a different mark on a 0.3 mL barrel than on a U-100.

Educational reference only — not medical advice or a dosing recommendation.

Default: 5mg / 2mL / 0.2mgAdjust inputs to match your vial

HGH (Somatropin) calculator →Norditropin FlexPro →

About

What is GHRP-2?

GHRP-2 is a synthetic ghrelin agonist that stimulates GH release. It is more potent than GHRP-6 but raises cortisol and prolactin somewhat. In Japan, GHRP-2 is approved as a diagnostic agent for GH deficiency under the name pralmorelin.

Sourcing

Where researchers source this

Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.

Particle Peptides

EU-based vendor (Slovakia, since 2015) shipping to EU, UK, and Switzerland. The only European supplier publishing all seven test parameters per batch (purity, identity, content, bioburden, endotoxins, heavy metals class 1 & 2). Manufacturer is cGMP / ISO 9001 / ISO 13485 compliant.

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Common vial sizes

2 mg	lyophilized powder
5 mg	lyophilized powder
10 mg	lyophilized powder

Reference dose ranges

0.1 mg	≈ 4 U-100 units (at 5mg / 2mL)
0.2 mg	≈ 8 U-100 units (at 5mg / 2mL)
0.3 mg	≈ 12 U-100 units (at 5mg / 2mL)

Reconstitution

How it's typically prepared

Reconstitute with BAC water; refrigerate.

FAQ

Frequently asked questions

GHRP-2 vs. GHRP-6?: GHRP-2 is more potent and does not increase appetite as much as GHRP-6. GHRP-6 is better known for its appetite-stimulating effect.

Sources

References

PubMed search: GHRP-2 pralmorelin

HGH (Somatropin) — IU dosing reference and reconstitution chart.

Notice

PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.