
How to Reconstitute GHK-Cu
GHK-Cu (Copper Tripeptide-1) is widely studied for skin regeneration and tissue repair research. Proper reconstitution ensures accurate peptide concentration and solution stability.
You can find laboratory-grade GHK-Cu peptides here.
Materials Required
- GHK-Cu vial
- Bacteriostatic water
- Sterile syringe
- Alcohol swabs
Reconstitution Process
- Sanitize vial tops.
- Draw bacteriostatic water.
- Inject slowly along the vial wall.
- Allow the peptide to dissolve.
- Gently swirl if needed.
How to Calculate Peptide Concentration After Reconstitution
When a peptide is reconstituted, a known amount of powder (mg) is dissolved in a specific amount of liquid (mL). The goal is to determine how much peptide is contained in each mL of solution.
Formula:
Concentration (mg/mL) = Peptide amount (mg) ÷ Liquid added (mL)
Example:
5 mg peptide + 2 mL liquid
5 ÷ 2 = 2.5 mg/mL
This means each mL contains 2.5 mg of peptide.
Converting mg to mcg
Peptide doses are often measured in micrograms (mcg).
1 mg = 1000 mcg
Example:
2.5 mg/mL × 1000 = 2500 mcg/mL
Finding the Volume for a Dose
To determine how much solution contains your desired dose:
Volume (mL) = Desired dose ÷ Concentration
Example:
Desired dose: 500 mcg
Concentration: 2500 mcg/mL
500 ÷ 2500 = 0.2 mL
Insulin Syringe Conversion
Most peptides are measured using U-100 insulin syringes.
1 mL = 100 units
0.5 mL = 50 units
0.2 mL = 20 units
0.1 mL = 10 units
0.05 mL = 5 units
Example:
0.2 mL = 20 units
Quick Example
Vial: 10 mg
Liquid added: 2 mL
10 ÷ 2 = 5 mg/mL
5 mg/mL = 5000 mcg/mL
If dose = 1 mg (1000 mcg):
1000 ÷ 5000 = 0.2 mL
0.2 mL = 20 units
Important Handling Tips
- Avoid shaking peptides.
- Always use sterile technique.
- Store reconstituted peptide refrigerated.
For additional peptide handling guides visit the Peptide Supply blog.
Research Use Only.

