50 mg vial

GHK-Cu: a 50 mg vial

What a 50 mg vial of GHK-Cu becomes once it is mixed, and what each dose reported in the sources draws to on a syringe. Every figure is arithmetic on the vial size in the heading — none of it is a recommendation, and the doses are the ones our sources describe rather than ones we picked.

Leading with

50 mg + 5 mL bacteriostatic water = 10 mg/mL

Chosen because it puts the reported doses on readable marks of a 1 mL U-100 syringe. Other volumes are perfectly valid — the dilution table further down covers them, and the concentration changes what every dose draws to.

What each reported dose draws to

At 10 mg/mL, on a 1 mL U-100 syringe. Every row names the source it came from, and a trial protocol and a community convention are not the same kind of information.

Reported doses for GHK-Cu, converted to syringe units for a 50 mg vial.
Goal	Dose	Units	Doses in this vial	Source
Commonly described injected doseOnce daily · Subcutaneous	1 mg – 2 mg	10 units – 20 units	50	Community practice
As delivered within a GLOW or KLOW blendOnce daily · Subcutaneous	1.25 mg – 2 mg	12.5 units – 20 units	40	Community practice

Check every figure against the vial in front of you before drawing. Vials are filled with an overage and labels are not a guarantee. Change any of these numbers in the calculator.

How long a vial lasts

Vials round up, because most of a vial is not a thing you can buy. Only doses with a stated continuous frequency appear here — anything described as a course, a range or “as needed” has no honest weekly rate, so it is left out.

Commonly described injected dose

Once daily

One 50 mg vial holds 25–50 doses at this dose, which is 3.6–7.1 weeks of use.

Supplies for Commonly described injected dose, by cycle length.
Cycle	Doses	50 mg vials	Syringes	Bacteriostatic water
8 weeks	56	2–3	56	10 mL – 15 mL
12 weeks	84	2–4	84	10 mL – 20 mL
16 weeks	112	3–5	112	15 mL – 25 mL

As delivered within a GLOW or KLOW blend

Once daily

One 50 mg vial holds 25–40 doses at this dose, which is 3.6–5.7 weeks of use.

Supplies for As delivered within a GLOW or KLOW blend, by cycle length.
Cycle	Doses	50 mg vials	Syringes	Bacteriostatic water
8 weeks	56	2–3	56	10 mL – 15 mL
12 weeks	84	3–4	84	15 mL – 20 mL
16 weeks	112	3–5	112	15 mL – 25 mL

Syringes assume one per dose and no wastage. Water assumes each vial is mixed at 5 mL. Neither accounts for a dropped vial, a bent needle or a dose you decide to change, all of which happen.

If you add a different amount of water

The same 50 mg of compound, at four common volumes. More water means a larger, easier-to-measure draw of a weaker solution; less water means the opposite. The amount of compound you inject is identical in every row — only the volume carrying it changes.

Concentration and draw volume for a 50 mg vial at four water volumes.
Water added	Concentration	1 mg draws to
1 mL	50 mg/mL	2 units units · 0.02 mL
2 mL	25 mg/mL	4 units units · 0.04 mL
3 mL	16.667 mg/mL	6 units units · 0.06 mL
5 mLshown above	10 mg/mL	10 units units · 0.1 mL

Storage

Before mixing

Refrigerated at 2–8 °C, protected from light.

After mixing

Refrigerated at 2–8 °C. The solution is characteristically blue; that colour is expected and is not a fault.

Other vial sizes

The same compound, different arithmetic.

100 mg vial

The full GHK-Cu profile →Printable one-pager →

Arithmetic on the vial size named above and the doses our sources report. Nothing here is a recommendation, a protocol or medical advice, and no clinician has reviewed it. Some rows describe community practice, which is not evidence that a dose is safe or effective. Speak to a licensed healthcare provider before acting on any of it.

Sources for the doses above are listed in full on the GHK-Cu profile, each with the trial or label it came from.