How to reconstitute Hexarelin 2 mg

In this example, 1 mL of bacteriostatic water in a 2 mg Hexarelin vial gives 2.00 mg/mL. An example 100 mcg amount is then 5.0 units on a U-100 syringe.

This example lands on a syringe line. More water makes a weaker mix and a bigger draw. Less water makes a stronger mix and a smaller one. The amount of Hexarelin stays the same. Use the diluent and volume specified for your product; the arithmetic alone does not choose them.

What matters first

Example water volume: 1 mL
Resulting strength: 2.00 mg/mL
Example 100 mcg dose: 5.0 U-100 units

How much bacteriostatic water for a 2 mg Hexarelin vial?

◆ Unique to the 2 mg vialU-100 example draws

Water added	Concentration	Per U-100 unit	Example: 100 mcg =
1 mL	2.00 mg/mL	20 mcg	5.0 units
2 mL	1.00 mg/mL	10 mcg	10.0 units

Straight arithmetic: concentration = 2 mg ÷ liquid volume, and 1 U-100 unit = 0.01 mL. The example column shows the math at 100 mcg; it is not a dose recommendation.

The table compares possible concentrations; it does not establish which diluent or volume suits your product. Follow its dispensing instructions.

“Hard to measure” means the example draw is below two U-100 units. “Won’t fit” means it exceeds this syringe’s capacity.

Hexarelin 2 mg vial: example mixing volumes. Each row is what that amount draws on a U-100 syringe. 1 mL makes 2.00 mg/mL, or 20 mcg a unit, and 100 mcg is 5 units. 2 mL makes 1.00 mg/mL, or 10 mcg a unit, and 100 mcg is 10 units. The barrel drawn here is filled to 5 units, the draw at 1 mL. The sum is 2 mg divided by the liquid volume. One U-100 unit is 0.01 mL. — The 2 mg vial at 1 mL on a U-100 barrel. 100 mcg fills to 5.0 units, at 2.00 mg/mL.

Medically reviewed by Kenneth Montecillo, MD2026-09-07open the primary sources

What is Hexarelin?

Hexarelin is a peptide six amino acids long, built in the early 1990s to trigger a growth-hormone pulse.

How many units is a documented dose from this vial?

The table above uses one worked example. These are the published quantities, converted into marks on a U-100 barrel at each listed liquid volume for a 2 mg vial. Where a quantity was never studied by injection, the row says so.

100–200 mcg — reported, not studied

100–200 mcg once or twice a day, continued for weeks at a time, under the skin. The one study that dosed anyone for 16 weeks watched the growth-hormone response fall by nearly half over that period.

Water added	Concentration	Draw, low to high
1 mL	2.00 mg/mL	5.0 to 10.0 units
2 mL	1.00 mg/mL	10.0 to 20.0 units

indirect evidenceDominikowski A, Rękoś Z, Olejarz M, Szczepanek-Parulska E, Domin R, Ruchała M. The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration. Front Endocrinol 2026 — tabulates self-reported online dosing patterns beside the clinical doses, stating the reported values must not be read as clinically validated, regulatory-approved or safe · retrieved 2026-08-12

The smallest vial here, and the one that reads best

This is the smallest hexarelin vial listed. That makes it easier to measure: the vial contains twenty doses, and both water options land on a printed syringe mark.

3Read the full vial record — 3 notes

Less powder is the advantage here

A small vial makes a weak solution at any given water volume, and a weak solution spreads a small dose across more marks. On a compound whose amounts are measured in a few hundred micrograms, that is the whole game.

Both listed volumes land the reading on a graduation, and the larger of the two reaches double figures of units. Nothing else on the hexarelin ladder does.

Twenty portions does not reproduce a long-term study

The vial divides into twenty worked doses. In the only long published course, the growth-hormone response had roughly halved by the sixteenth week and recovered after stopping.

That study result cannot be matched to this portion count without the same dose, frequency and participants. The number of portions does not predict when an individual would respond or when a response would change.

Published amounts all scale with body weight

None of the human quantities on this page converts into a draw on its own; each needs a weight to multiply by.

The flat microgram amount comes from reported practice. The arithmetic is exact, but the starting amount is a convention rather than a tested dose.

How do you mix it, step by step?

Wipe both stoppers with an alcohol swab and let them dry.
Check the product’s mixing instructions for the correct diluent and volume before drawing it up.
Let the water run slowly down the inside wall of the Hexarelin vial, rather than jetting it onto the powder.
Follow the product’s instructions for mixing and checking the solution before use. Do not assume every powder uses the same method.
Store it as the dispensing label directs. What happens after mixing differs by product — some labels direct against refrigerating the mixed solution at all.

What if your water volume is not on the table?

The calculator lets you enter your product’s vial strength and mixing volume, then shows the arithmetic for your syringe.

Open the Hexarelin calculator →

Where to read next about Hexarelin

The arithmetic on this page is only half the question. These are the pages that carry the other half.

What hexarelin is, how it is used, and what has been studied

Hexarelin is a growth hormone secretagogue — synthetic hexapeptide (research compound).

Vial, water and dose for any peptide, with hexarelin as one example

U-100, U-50 and U-40 barrels each read differently, including hexarelin

Find hexarelin in the mixing and injection guides

Browse the available mixing and injection guides for more context on hexarelin.

What the FDA has published on hexarelin

What has been decided, and what has only been proposed, including Hexarelin

4primary sources, each with the day we read it — open the documents used on this page