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Calculate GHK-Cu Dosage Reconstitution Math: Reconstitution Volume Comparison
Choosing the right reconstitution volume depends on your target dose range and injection frequency. The table below compares four common reconstitution volumes for a 5mg GHK-Cu vial, showing resulting concentration, dose volumes for common target doses, and to
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- Choosing the right reconstitution volume depends on your target dose range and injection frequency. The table below compares four common reconstitution volumes for a 5mg GHK-Cu vial, showing resulting concentration, dose volumes for common target doses, and total doses per vial.
- 1mL
- 5mg/mL
- 0.04mL (4 units)
- 0.1mL (10 units)
- 0.2mL (20 units)
- 10 doses
- Difficult. Requires 0.3mL syringe for doses below 500mcg
- Best for high-dose protocols (1–3mg) where small volumes reduce injection discomfort
- 2mL
- 2.5mg/mL
- 0.08mL (8 units)
- 0.4mL (40 units)
- Good. 500mcg+ measurable on standard insulin syringe
- Optimal balance. Precise measurement for 200mcg–2mg range with standard U-100 syringes
- 5mL
- 1mg/mL
- 0.5mL (50 units)
- 1mL (100 units)
- Excellent. All common doses above 100mcg easily measured
- Best for low-dose protocols (100–500mcg) but increases puncture frequency and contamination risk
- 10mL
- 0.5mg/mL
- 2mL (200 units)
- 5 doses per 5mL drawn
- Excellent but impractical. Volumes above 1mL per dose
- Not recommended. Injection volumes become uncomfortably large for subcutaneous administration
- The 2mL reconstitution volume consistently produces the fewest dosing errors across research teams in our experience. It allows precise measurement of doses from 200mcg (8 units) through 2mg (80 units) using standard U-100 insulin syringes, covers the most common GHK-Cu research dose range (500mcg–1mg), and minimizes the number of vial punctures compared to 5mL or 10mL reconstitution, reducing contamination exposure over the vial's usable life.