Peptide handling
GHRP-6 reconstitution calculator
Reconstitution calculator for GHRP-6, prefilled for its 5 and 10 mg vials. Get the concentration, the dose volume and the U-100 syringe reading.
Start from a compound
Fills the vial size and a starting water volume. Only compounds with a citable range fill a dose.
The second is the question asked once the syringe is already filled, or when checking a vial someone else reconstituted.
1 mg = 1,000 mcg. Published figures are usually micrograms; vial labels are milligrams.
- Draw to
- 4 unitson a U-100 syringe
- Dose
- 100 mcg
- Dose volume
- 0.04 mL
- Concentration
- 2.5 mg/mL
- Per unit
- 25 mcg
- Doses per vial
- 50whole doses; a partial one is not counted
Shown on a 30-unit (0.3 mL) U-100 syringe, the smallest that holds this draw.
GHRP-6 — Limited human data
From human studies that are small, early-phase, or for a different indication than the one this range is usually cited for. The prefilled dose is the low end of that range, 3x daily, at least 4 hours apart, escalated over a 12-week schedule.
Vial size and water volume are a starting point for the arithmetic, not a recommendation.
Adding more water makes the same dose a larger, easier-to-read mark on the syringe. It does not change how many doses the vial holds.
Vial sizes and starting volume
GHRP-6 is commonly supplied in 5 mg and 10 mg vials. The calculator opens on a 5 mg vial with 2 mL of bacteriostatic water — a starting point for the arithmetic, not a recommendation. Change either and everything recalculates.
That combination gives 2.5 mg/mL, so one insulin unit holds 25 mcg and a 100 mcg dose is 4 units.
What dose to enter
A range of 100–300 mcg per dose can be cited for GHRP-6, 3x daily, at least 4 hours apart, escalated over a 12-week schedule. The dose field opens at the low end of it.
Limited human data
From human studies that are small, early-phase, or for a different indication than the one this range is usually cited for.
- On the in vitro and in vivo activity of a new synthetic hexapeptide that acts on the pituitary to specifically release growth hormone. — Preclinical characterization study. Original characterization of the hexapeptide's GH-releasing activity; in vitro and animal work.
- A receptor in pituitary and hypothalamus that functions in growth hormone release. — Receptor pharmacology study. Identifies the receptor GHRP-6 acts through; mechanism, not dosing.
- Ghrelin is a growth-hormone-releasing acylated peptide from stomach. — Discovery study. Identifies ghrelin as the endogenous ligand for the same receptor GHRP-6 targets; background, not dosing.
- Endocrine activities of ghrelin in humans: comparison with GHRP-6 and GHRP-2 (GH, ACTH, cortisol, prolactin). — Human endocrine study. The verifying human citation — measures GH, ACTH, cortisol and prolactin response to GHRP-6 in people.
- Growth hormone (GH)-releasing peptide-6 requires endogenous hypothalamic GH-releasing hormone for maximal GH stimulation. — Mechanistic study. Explains the GHRH-dependence of the GH response; mechanism, not a dosing figure.
Related
- GHRP-6 — the product page, with its current batch.
- Bacteriostatic water — what goes in the vial.
- Peptide reconstitution calculator — the general version, with the blend and half-life calculators alongside it.
- Dosing reference — published schedules, each with the evidence behind it.
For research use only. This tool performs arithmetic on figures you supply — it is not medical guidance and does not recommend a dose for any compound.