PeptiDex
Research Tool

GHK-Cu Reconstitution Calculator

A copper-binding tripeptide studied in dermal-research and tissue-remodeling contexts. This page works out concentration, volume per measured amount, syringe units and preparations per vial for a reconstituted GHK-Cu preparation, plus the mass-to-molar conversions for its stated molecular weight. Everything runs in your browser; nothing is transmitted or stored.

Also referenced as: Copper peptide, Copper tripeptide-1, Glycyl-L-histidyl-L-lysine copper, Prezatide copper

Copper-binding tripeptideMW 340.4 Da
For research and educational purposes only. This is a unit-conversion tool for laboratory reference. It is not medical advice, not a dosing recommendation, and not an instruction for human use.

Inputs

Results

Concentration
2.5 mg/mL (2,500 mcg/mL)
Per syringe unit
25 mcg per unit
Volume per preparation
0.1 mL
Syringe units to draw
10 units
Preparations per vial
20 preparations

Worked example: a 5 mg vial reconstituted with 2 mL of bacteriostatic water. Change any input to recalculate.

A unit-conversion reference for laboratory work. Not a dosing recommendation and not an instruction for human use.

The pre-filled example, step by step

The inputs above are the neutral reference preparation this site uses everywhere the calculator appears: a 5 mg vial, 2 mL of bacteriostatic water, and a 250 mcg target amount. They are not a property of GHK-Cu and not an amount anyone should draw — they exist so the arithmetic is visible before you change anything.

  1. Concentration. 5 mg ÷ 2 mL = 2.5 mg/mL (2,500 mcg/mL), which for GHK-Cu is approximately 7.344 mM at its stated molecular weight.
  2. Per syringe unit. A U-100 syringe divides 1 mL into 100 units, so one unit holds 2,500 mcg ÷ 100 = 25 mcg.
  3. Volume for the 250 mcg target. 250 mcg ÷ 2,500 mcg/mL = 0.1 mL, or 10 units on that syringe.
  4. Preparations per vial. 5,000 mcg ÷ 250 mcg = 20 preparations.

Arithmetic on a laboratory preparation, shown as a unit-conversion reference. Not medical advice, not a dosing recommendation, not an instruction for human use. The full derivation, and why the diluent volume is a choice rather than a constant, is on the main reconstitution calculator.

Mass and molar equivalents for GHK-Cu

Derived from the molecular weight recorded on the GHK-Cu entry: 340.4 Da. Concentration in molar units is what an in-vitro protocol is usually specified in.

Mass to molar conversions for GHK-Cu at its stated molecular weight.
QuantityMolar equivalent
1 mg of GHK-Cu2,938 nmol (2.938 µmol)
1 mcg of GHK-Cu2.938 nmol
A 1 mg/mL solution2.938 mM (2,938 µM)

Molar amount = mass ÷ molecular weight. Figures are shown to four significant digits and are a unit conversion, not a measurement.

Reconstitution recorded for GHK-Cu

When supplied lyophilized, reconstituted with bacteriostatic water; blue-tinted solution from the copper complex

Quoted from the GHK-Cu entry. Amounts reported in the research literature for this compound are documented on that entry, under the disclaimer they belong with — they are not reproduced next to a calculator. Read the full GHK-Cu entry.

Handling questions for GHK-Cu

Is GHK-Cu topical or injectable in research?

GHK-Cu appears in both contexts. In cosmetics it is used topically as a formulation percentage; in research-peptide settings it is also sold lyophilized for reconstitution. Framing depends entirely on the study design, and neither use is a form of medical treatment.

Answers are published on the GHK-Cu entry. Educational summaries of research-literature context, not medical advice.

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