GHK-Cu Calculator
Dosage and reconstitution math for GHK-Cu. A copper-binding tripeptide isolated from human plasma, studied for its role in extracellular matrix signaling and wound healing.
Reconstitution calculator
Pre-filled with common defaults for GHK-Cu. Adjust any field to match your own vial.
Show the math
Enter values above to see the step-by-step math.
Free Illustrated Reconstitution Guide (PDF)
8-step visual walkthrough with photos and tips — from gathering supplies to drawing your dose. Educational only — not medical advice.
GHK-Cu dosage calculator
The GHK-Cu dosage calculator above converts a target dose into exact syringe units based on your vial size and how much bacteriostatic water you used to reconstitute it. GHK-Cu is commonly sold in 50 mg, 100 mg, 200 mg vials. The calculator supports both U-100 and U-40 insulin syringes and flags draws that are too large for the syringe barrel or too small to measure accurately. A copper-binding tripeptide isolated from human plasma, studied for its role in extracellular matrix signaling and wound healing. Enter your target dose in the calculator above to see the exact number of units to draw.
GHK-Cu dosage chart
| Sample dose | Concentration | Volume to draw | Units on U-100 |
|---|---|---|---|
| 2.5 mg | 20 mg/mL | 0.125 mL | 12.5 |
| 5 mg | 20 mg/mL | 0.25 mL | 25 |
| 10 mg | 20 mg/mL | 0.5 mL | 50 |
| 20 mg | 20 mg/mL | 1 mL | 100 |
| 40 mg | 20 mg/mL | 2 mL | 200 |
GHK-Cu and Copper peptides
GHK-Cu is a Copper-binding tripeptide. A copper-binding tripeptide isolated from human plasma, studied for its role in extracellular matrix signaling and wound healing.
How to reconstitute GHK-Cu
Reconstituting GHK-Cu is the same unit-conversion process used for any lyophilized peptide:
- Draw your chosen volume of bacteriostatic water into a syringe.
- Inject the bacteriostatic water slowly down the side of the GHK-Cu vial — do not shoot it directly onto the powder.
- Swirl gently until the powder fully dissolves. Do not shake.
- Store the reconstituted vial refrigerated.
- To dose, calculate your draw volume: divide your target dose by the concentration (vial mg ÷ water mL = mg/mL). The calculator above does this automatically.
For GHK-Cu specifically, 50 mg, 100 mg, 200 mg vials are common. A typical reconstitution adds 2 mL of bacteriostatic water, producing a concentration of 50 mg/mL for the 100 mg vial size.
GHK-Cu half-life and storage
Published pharmacokinetic data on injectable GHK-Cu is limited. As a small tripeptide complex, it is generally reported to have a plasma half-life on the order of hours.
Lyophilized GHK-Cu is typically stored refrigerated or frozen. Reconstituted solutions are generally refrigerated and protected from light. Copper complexes are especially sensitive to pH and should be stored according to supplier guidance.
Common GHK-Cu dosing mistakes
- Confusing mg and mcg. 1 mg = 1,000 mcg. Always convert to the same unit before computing the draw.
- Using a U-40 syringe with U-100 math. Same printed mark, 2.5× the physical volume. Always check the syringe label.
- Not labeling the vial. Write the reconstitution date and concentration on the vial the moment you mix it.
- Under-diluting. If your draw is less than about 1 unit, the volume is too small to read accurately — add more bacteriostatic water next time.