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Pentapeptide growth hormone releasing peptide (GHRP)

Ipamorelin Calculator

Dosage and reconstitution math for Ipamorelin. A selective pentapeptide growth hormone releasing peptide that activates the ghrelin receptor to stimulate pituitary GH release.

Reconstitution calculator

Pre-filled with common defaults for Ipamorelin. Adjust any field to match your own vial.

mg
mL
Draw to
units on the syringe
Equivalent volume: mL
Concentration
mcg / mL
Per syringe unit
mcg / unit
Show the math

Enter values above to see the step-by-step math.

Preview of the illustrated reconstitution guide
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Free Illustrated Reconstitution Guide (PDF)

8-step visual walkthrough with photos and tips — from gathering supplies to drawing your dose. Educational only — not medical advice.

Ipamorelin reconstitution diagram Ipamorelin: 5 mg vial mixed with 2 mL bacteriostatic water yields 2.5 mg/mL. A 200 mcg dose draws to 8 units on a U-100 syringe. 1 Reconstitute 5 mg vial + 2 mL BAC water 2 Calculate concentration 2.5 mg/mL 5 mg ÷ 2 mL = 2.5 concentration 3 Convert dose to volume 200 mcg dose 200 mcg ÷ 2500 mcg/mL = 0.08 mL 4 Draw to mark 0 25 50 75 100 8 units U-100 5 mg vial · 2 mL water · 2.5 mg/mL · 200 mcg dose → 0.08 mL → 8 units on U-100

Ipamorelin dosage calculator

The Ipamorelin dosage calculator above converts a target dose into exact syringe units based on your vial size and how much bacteriostatic water you used to reconstitute it. Ipamorelin is commonly sold in 2 mg, 5 mg, 10 mg vials. The calculator supports both U-100 and U-40 insulin syringes and flags draws that are too large for the syringe barrel or too small to measure accurately. A selective pentapeptide growth hormone releasing peptide that activates the ghrelin receptor to stimulate pituitary GH release. Enter your target dose in the calculator above to see the exact number of units to draw.

Ipamorelin dosage chart

Sample doseConcentrationVolume to drawUnits on U-100
130 mcg2.5 mg/mL0.052 mL5.2
250 mcg2.5 mg/mL0.1 mL10
500 mcg2.5 mg/mL0.2 mL20
1000 mcg2.5 mg/mL0.4 mL40
2000 mcg2.5 mg/mL0.8 mL80

Ipamorelin and GHRP peptides

Ipamorelin is a Pentapeptide growth hormone releasing peptide (GHRP). A selective pentapeptide growth hormone releasing peptide that activates the ghrelin receptor to stimulate pituitary GH release. Other peptides in the GHRP class include Hexarelin .

See all GHRP peptides →

How to reconstitute Ipamorelin

Reconstituting Ipamorelin is the same unit-conversion process used for any lyophilized peptide:

  1. Draw your chosen volume of bacteriostatic water into a syringe.
  2. Inject the bacteriostatic water slowly down the side of the Ipamorelin vial — do not shoot it directly onto the powder.
  3. Swirl gently until the powder fully dissolves. Do not shake.
  4. Store the reconstituted vial refrigerated.
  5. To dose, calculate your draw volume: divide your target dose by the concentration (vial mg ÷ water mL = mg/mL). The calculator above does this automatically.

For Ipamorelin specifically, 2 mg, 5 mg, 10 mg vials are common. A typical reconstitution adds 2 mL of bacteriostatic water, producing a concentration of 2.5 mg/mL for the 5 mg vial size.

Ipamorelin half-life and storage

Published pharmacokinetic studies report a plasma half-life of approximately 2 hours for ipamorelin.

Lyophilized ipamorelin is typically stored refrigerated at 2–8 °C. Reconstituted solutions are generally kept refrigerated and protected from light.

Common Ipamorelin dosing mistakes

  • Confusing mg and mcg. 1 mg = 1,000 mcg. Always convert to the same unit before computing the draw.
  • Using a U-40 syringe with U-100 math. Same printed mark, 2.5× the physical volume. Always check the syringe label.
  • Not labeling the vial. Write the reconstitution date and concentration on the vial the moment you mix it.
  • Under-diluting. If your draw is less than about 1 unit, the volume is too small to read accurately — add more bacteriostatic water next time.

Ipamorelin stacks

Ipamorelin is one of the ingredients in what is commonly referred to as the GH stack . These are terms used in online peptide communities to describe specific combinations. See the stack pages for the full composition and calculator links.

Ipamorelin FAQ

What is Ipamorelin? +
Ipamorelin is a Pentapeptide growth hormone releasing peptide (GHRP). A selective pentapeptide growth hormone releasing peptide that activates the ghrelin receptor to stimulate pituitary GH release.
How do I calculate my Ipamorelin dose? +
Use the calculator above. Enter your vial size (2 mg, 5 mg, 10 mg are common for Ipamorelin), the amount of bacteriostatic water you added, and your target dose. The calculator returns the exact number of syringe units to draw.
What vial sizes does Ipamorelin come in? +
Ipamorelin is commonly available in 2 mg, 5 mg, 10 mg vials.
How long does Ipamorelin last? +
Ipamorelin's reported half-life is ~2 hours.
How should I store Ipamorelin? +
Lyophilized ipamorelin is typically stored refrigerated at 2–8 °C. Reconstituted solutions are generally kept refrigerated and protected from light.