Lab arithmeticGHRP-2 (pralmorelin)Not approved (research only)
GHRP-2 10 mg: dosing evidence and reconstitution math
A 10 mg vial of GHRP-2 mixed with 2 mL of diluent is 5 mg/mL, so 10 units on a U-100 syringe (0.1 mL) contain 500 mcg.
Is there an established dose?
No FDA label or published human trial defines a dose of GHRP-2, so we do not publish one. Online "protocols" for it are not evidence.
- GHRP-2 (pralmorelin) profile: FDA status, research volume and registered trials.
10 mg vial concentration table
Concentration = vial content ÷ diluent volume. A U-100 insulin syringe holds 1 mL in 100 units, so 1 unit = 0.01 mL.
| Diluent | Concentration | Per 10 units (0.1 mL) | Per 1 unit |
|---|---|---|---|
| 1 mL | 10 mg/mL | 1 mg | 100 mcg |
| 2 mL | 5 mg/mL | 500 mcg | 50 mcg |
| 3 mL | 3.333 mg/mL | 333 mcg | 33.3 mcg |
| 5 mL | 2 mg/mL | 200 mcg | 20 mcg |
Arithmetic only; it assumes the vial contains exactly what the label states. Independent tests often find vials under- or over-filled, which is why a lot's certificate of analysis matters.
Syringe units for a given amount
Units on a U-100 syringe needed to draw each amount from this 10 mg vial, by diluent volume. The amounts are fractions of the vial (1/50, 1/20, 1/10, 1/5), not dose suggestions.
| Amount | 1 mL diluent | 2 mL diluent | 3 mL diluent |
|---|---|---|---|
| 200 mcg | 2 units | 4 units | 6 units |
| 500 mcg | 5 units | 10 units | 15 units |
| 1 mg | 10 units | 20 units | 30 units |
| 2 mg | 20 units | 40 units | 60 units |
Units = amount ÷ concentration × 100. Draws above 100 units exceed a 1 mL syringe.
What the research covers
A PubMed search for "pralmorelin"[tiab] returned 15 records (2 from the last five years), none indexed as clinical trials when checked on October 2026. That is a very small literature; most of it is cell or animal work.
- Pralmorelin: GHRP 2, GPA 748, growth hormone-releasing peptide 2, KP-102 D, KP-102 LN, KP-102D, KP-102LN.
- Physiologically based pharmacokinetic model for pralmorelin hydrochloride in rats.
- Pharmacological characteristics of KP-102 (GHRP-2), a potent growth hormone-releasing peptide.
- Determination of growth hormone secretagogue pralmorelin (GHRP-2) and its metabolite in human urine by liquid chromatography/electrospray ionization tandem mass spectrometry.
- Gateways to clinical trials.
Where research vials are listed
15 suppliers in our directory list GHRP-2 (A–Z): Atomik Labz, BioGenix Peptides, Biotech Peptides, Costides, Eros Peptides, Evolve BioPep, Extreme Peptides, NuScience Peptides, and 7 more. A listing is not a quality endorsement; ask for a lot-specific certificate of analysis.
Storage & handling
Follow the storage statement on the product sheet or certificate of analysis. Lyophilized (freeze-dried) peptides are generally kept cold, dry and away from light; once reconstituted, stability is shorter and depends on the compound and diluent. Bacteriostatic water contains 0.9% benzyl alcohol as a preservative; sterile water does not.
Frequently asked questions
How much bacteriostatic water for a 10 mg GHRP-2 vial?
The diluent volume only sets the concentration: 1 mL gives 10 mg/mL, 2 mL gives 5 mg/mL and 3 mL gives 3.333 mg/mL. Smaller volumes are more concentrated, so each syringe unit holds more.
How much GHRP-2 is in 10 units?
At 2 mL of diluent, 10 units (0.1 mL) of a 10 mg vial contain 500 mcg; at 1 mL they contain 1 mg.
What is the dose of GHRP-2?
No FDA label or published human trial defines a dose of GHRP-2, so we do not publish one. Online "protocols" for it are not evidence.
Related pages
Peptide calculator BAC water calculator Growth hormone & GHRH protocols