Reconstitution Calculator
How to Reconstitute GHK-Cu
Updated today
GHK-Cu is supplied as a 100 mg lyophilized (freeze-dried) vial and must be reconstituted with bacteriostatic water before use. Adding 2 mL to a 100 mg vial yields a concentration of 50 mg/mL — so a 250 mcg reference dose is 0.5 units on a standard U-100 insulin syringe. Use more water for a more dilute, easier-to-measure solution, or less for a more concentrated one; the amount of compound in the vial is the same either way. Adjust the calculator below to match your exact vial size and target dose.
| Dose | Units (U-100) | Volume |
|---|---|---|
| 250 mcg | 0.5 units | 0.005 mL |
| 500 mcg | 1 units | 0.01 mL |
| 1000 mcg | 2 units | 0.02 mL |
| 2000 mcg | 4 units | 0.04 mL |
Reference figures at your current concentration (50 mg/mL). Research-reference data, not dosing instructions — compounds are not for human consumption.
Where to buy GHK-Cu
Before you reconstitute, make sure the vial is the real thing. We track live $/mg prices for GHK-Cu across COA-verified vendors and rank them by Certificate-of-Analysis tier.