Free calculator · No sign-up

GHK-Cu dosage calculator

Answer

GHK-Cu vials are commonly labelled 50 mg, 100 mg, 200 mg. This calculator divides the vial mass by the diluent volume you enter to show concentration, then converts your own target amount into millilitres and syringe units. It states no dose, chooses no amount and stores nothing.

This page is a calculation tool. The amounts you enter are values you decided; this page states no dose and gives no medical advice.

Peptide in vial

Use the mass printed on the vial label.

Diluent added

Enter the volume you measured.

Your own target amount

mcg

This is your value, not a recommendation from the tool.

Syringe calibration

Use the calibration printed on the barrel.

Result

Concentration

25,000 mcg/mL

25 mg/mL

Volume from your input

0.04 mL

of solution

On the syringe

4 units

U-100 barrel

One unit contains 250 mcg. This vial contains 50 mathematical portions of the amount you entered.

GHK-Cu vial concentration grid

This table answers one arithmetic question: what concentration results when a labelled vial mass is divided by a measured diluent volume? It does not select either value.

Vial mass	Diluent	Concentration	Same concentration
50 mg	0.5 mL	100,000 mcg/mL	100 mg/mL
50 mg	1 mL	50,000 mcg/mL	50 mg/mL
50 mg	1.5 mL	33,333.33 mcg/mL	33.333 mg/mL
50 mg	2 mL	25,000 mcg/mL	25 mg/mL
50 mg	2.5 mL	20,000 mcg/mL	20 mg/mL
50 mg	3 mL	16,666.67 mcg/mL	16.667 mg/mL
50 mg	5 mL	10,000 mcg/mL	10 mg/mL
100 mg	0.5 mL	200,000 mcg/mL	200 mg/mL
100 mg	1 mL	100,000 mcg/mL	100 mg/mL
100 mg	1.5 mL	66,666.67 mcg/mL	66.667 mg/mL
100 mg	2 mL	50,000 mcg/mL	50 mg/mL
100 mg	2.5 mL	40,000 mcg/mL	40 mg/mL
100 mg	3 mL	33,333.33 mcg/mL	33.333 mg/mL
100 mg	5 mL	20,000 mcg/mL	20 mg/mL
200 mg	0.5 mL	400,000 mcg/mL	400 mg/mL
200 mg	1 mL	200,000 mcg/mL	200 mg/mL
200 mg	1.5 mL	133,333.33 mcg/mL	133.333 mg/mL
200 mg	2 mL	100,000 mcg/mL	100 mg/mL
200 mg	2.5 mL	80,000 mcg/mL	80 mg/mL
200 mg	3 mL	66,666.67 mcg/mL	66.667 mg/mL
200 mg	5 mL	40,000 mcg/mL	40 mg/mL

GHK-Cu vial mg × diluent mL → concentration. Packaging and unit arithmetic only.

GHK-Cu physical-property record

Copper coordination changes the identity record

PubChem records copper tripeptide as a copper-coordinated form rather than plain glycyl-L-histidyl-L-lysine. Its listed formula is C14H21CuN6O4- and its molecular weight is 400.90 g/mol. The copper atom is part of that identity record, so a page or certificate for uncomplexed GHK should not be assigned the GHK-Cu value. The blue color commonly associated with copper peptide material is also a reason to preserve the exact compound wording and physical appearance in a lot record. Sources: PubChem: copper tripeptide compound record · MedChemExpress: copper tripeptide GHK-Cu specification.

Solubility belongs to a named product form

MedChemExpress reports water solubility for its GHK-Cu product at 50 mg/mL with ultrasonic assistance. That is a technical result for the supplier's specified material, not a universal reconstitution volume. A different counterion, purity, excipient package or copper ratio can change observed behavior. The calculator therefore never preselects liquid from this solubility figure; it only divides the labelled mass by the volume the user actually measured. Sources: MedChemExpress: copper tripeptide GHK-Cu specification.

Storage wording should travel with the source

The MedChemExpress technical page separates short-term refrigerated storage from longer-term frozen storage and advises protection from light. Those conditions describe unopened reference material under the supplier's packaging. They do not establish a beyond-use date for a separately sourced solution. For GHK-Cu, a complete record should retain the source, form, opening date, observed color and storage statement together so a later reader can tell what was documented and what was merely assumed. Sources: MedChemExpress: copper tripeptide GHK-Cu specification.

Mass arithmetic does not measure copper content

The live calculator reports total labelled mass concentration. It cannot determine copper occupancy, peptide purity or whether the label mass refers to the complex, the peptide portion or a salt. PubChem's molecular record helps identify the intended complex, while the supplier document defines the tested product. If a certificate expresses content on a different basis, that basis must be copied into the vial note. The page states no dose and makes no claim about biological activity. Sources: PubChem: copper tripeptide compound record · MedChemExpress: copper tripeptide GHK-Cu specification.

How to use the calculator

Read the total mass from your own vial label and enter it in milligrams.
Enter the diluent volume you actually measured, not an intended or remembered value.
Enter your own target amount and select the calibration printed on your syringe barrel.
Record the concentration with the result so the syringe-unit figure remains interpretable later.

Source and identity record

Use the compound reference page and these external database searches when checking identity: PubMed literature search for GHK-Cu · PubChem: copper tripeptide compound record · MedChemExpress: copper tripeptide GHK-Cu specification. A database record does not authenticate a vial.

Frequently asked questions

How much bacteriostatic water for a 50 mg GHK-Cu vial?

This calculator does not choose a diluent volume. Enter the volume you decided to add to the 50 mg vial and it will show the resulting concentration. The page supplies arithmetic, not an instruction.

How much bacteriostatic water for a 200 mg GHK-Cu vial?

There is no universal volume selected by this page. Use the value you measured or were instructed to use; the calculator then divides the 200 mg label mass by that volume.

Does the GHK-Cu calculator recommend a dose?

No. The target amount is always entered by the user. The tool provides no starting amount, maximum amount, progression, frequency or schedule.

Why does the syringe calibration matter?

A syringe unit is a volume marking. U-100, U-50 and U-40 barrels use different numbers of units per millilitre, so the same solution volume produces different markings.

GHK-Cu referenceIdentity, label and record-keeping context.All peptide calculatorsBrowse the compound-specific calculator index.Printable chartsVial and unit arithmetic in printable tables.Reconstitution solutionThe diluent term explained.Peptide reconstitution explainedThe formula and unit definitions.

Stop recalculating this every time

PepCycle stores each vial once — mass, diluent volume, concentration — and converts automatically for every entry after that, in both directions, including entries you backdate.

Download on the App Store Or try the free calculators

Free to download · No account required · Price shown before you enter anything personal

Last updated July 28, 2026 · Written by Aykut Yilmaz. All calculations run in your browser; no values are transmitted or stored.