How to reconstitute Hexarelin 2 mg

Put 1 mL of bacteriostatic water into the 2 mg Hexarelin vial. That makes 2.00 mg/mL. A 100 mcg dose is then 5.0 units on a U-100 syringe.

That volume is the one that lands the draw on a syringe line, so the reading can be checked by eye. More water makes a weaker mix and a bigger draw. Less water makes a stronger mix and a smaller one. The amount of Hexarelin in the glass never changes. Only the number of marks it takes does.

What matters first

Water to add: 1 mL
Resulting strength: 2.00 mg/mL
Example 100 mcg dose: 5.0 U-100 units

What is Hexarelin?

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

Medically reviewed by Jennifer Montecillo, MD · non-practicing medical reviewerReviewed 2026-08-12open the primary sources

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 ÷ water, and 1 U-100 unit = 0.01 mL. The example column shows the math at 100 mcg; it is not a dose recommendation.

Which volume to use is a practical choice rather than a dose. Pick the one that puts your draw somewhere you can actually read it on the syringe. The flags in the last column mark where that fails. “Hard to measure” means the draw is too small to judge by eye. “Won’t fit” means it is bigger than one U-100 syringe holds.

Hexarelin 2 mg vial: how much water to add. 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 water. 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.

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 water 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 draws, and the response faded before that

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.

So the powder outlasts the effect that was measured. A supply figure is not a schedule, and here the evidence describes a course with an end rather than something open-ended.

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.
Draw up the water volume you picked from the table.
Let the water run slowly down the inside wall of the Hexarelin vial, rather than jetting it onto the powder.
Swirl gently until it dissolves. Shaking damages peptides.
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 table shows the offered water volumes. The calculator does the same arithmetic for any volume and any syringe, and shows its working line by line.

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

Where the hexarelin guides sit in the full list

Vial-specific tables and label-sourced injection guides, including 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