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Hexapeptide GHRP

Hexarelin Reconstitution Calculator

Convert your target Hexarelin dose into exact syringe units. Enter your vial and target dose — this tool does the math.

Reconstitution calculator

Pre-filled with common defaults for Hexarelin. 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.

What is Hexarelin?

Hexarelin is a synthetic hexapeptide in the growth hormone releasing peptide (GHRP) class, structurally related to GHRP-6. Published research has studied its agonism at both the ghrelin / growth hormone secretagogue receptor and at CD36, a scavenger receptor implicated in cardiovascular pharmacology. It has been reported in the literature to produce strong effects on growth hormone release and has been investigated in cardiovascular research contexts. Hexarelin is not approved by the FDA for human use. Research-grade hexarelin is sold only as a laboratory reagent.

Common vial sizes

Research vendors typically offer hexarelin in 2 mg, 5 mg, or 10 mg lyophilized vials. Reconstitution with 2–3 mL of bacteriostatic water is commonly reported.

  • 2 mg vial
  • 5 mg vial
  • 10 mg vial

Reconstitution examples

Worked examples showing exactly what a given vial, bacteriostatic water volume, and target dose produce in syringe units. All math is from the same calculator above.

  • 5 mg vial + 2 mL bacteriostatic water → 2500 mcg/mL concentration.
    A 100 mcg dose = 4 units on a u-100 insulin, 1 ml (100 units) (0.04 mL).
  • 5 mg vial + 2 mL bacteriostatic water → 2500 mcg/mL concentration.
    A 200 mcg dose = 8 units on a u-100 insulin, 1 ml (100 units) (0.08 mL).
  • 10 mg vial + 3 mL bacteriostatic water → 3333.33 mcg/mL concentration.
    A 200 mcg dose = 6 units on a u-100 insulin, 1 ml (100 units) (0.06 mL).
  • 2 mg vial + 2 mL bacteriostatic water → 1000 mcg/mL concentration.
    A 100 mcg dose = 10 units on a u-100 insulin, 1 ml (100 units) (0.1 mL).

Storage & shelf life

Lyophilized hexarelin is typically stored refrigerated. Reconstituted solutions are commonly refrigerated and protected from light.

Reported half-life

Published pharmacokinetic studies report a plasma half-life of approximately 55 minutes for hexarelin.

Frequently asked questions

How is hexarelin different from GHRP-6? +
Hexarelin and GHRP-6 are structurally related hexapeptides. Published research has reported hexarelin to produce stronger GH-releasing effects in some studies and has additionally characterized its activity at the CD36 scavenger receptor.
What is the reported half-life of hexarelin? +
Published pharmacokinetic studies report a plasma half-life of approximately 55 minutes.
Is hexarelin FDA-approved? +
No. Hexarelin is not approved by the FDA for human use.
How much bacteriostatic water should I use with a 5 mg vial? +
2–3 mL is commonly reported. The calculator above computes exact draw volumes.
What syringe size is best? +
U-100 insulin syringes in 0.3 mL or 0.5 mL sizes are commonly reported.

Free Peptide Reconstitution Cheat Sheet (PDF)

A one-page reference with common vial-to-dose conversions. Educational only — not medical advice.