GHK-Cu · Dosing & maths
GHK-Cu dosage: what the research used
This page collects the doses reported in published GHK-Cu research and works through the reconstitution maths for common vial sizes. It does not recommend any dose.
Doses used in published research
Cosmetic studies used topical creams and serums applied once or twice daily over 8–12 weeks. In vitro effects appear at nanomolar concentrations. There are no published human trials of injected GHK-Cu and no established injectable dose.
GHK-Cu reconstitution table
Syringe units (U-100: 100 units = 1 mL) needed for a given amount, by vial size and water volume:
| Vial | Water | Concentration | 1 mg | 2 mg | 3 mg |
|---|---|---|---|---|---|
| 50 mg | 2 mL | 25 mg/mL | 4 units | 8 units | 12 units |
| 50 mg | 3 mL | 16.667 mg/mL | 6 units | 12 units | 18 units |
| 50 mg | 5 mL | 10 mg/mL | 10 units | 20 units | 30 units |
| 100 mg | 2 mL | 50 mg/mL | 2 units | 4 units | 6 units |
| 100 mg | 3 mL | 33.333 mg/mL | 3 units | 6 units | 9 units |
| 100 mg | 5 mL | 20 mg/mL | 5 units | 10 units | 15 units |
GHK-Cu reconstitution calculator
Vial presets:
Arithmetic aid for laboratory reconstitution. It does not recommend any amount for any use.
Handling and storage
Reconstitute with bacteriostatic water, adding it slowly down the vial wall and swirling rather than shaking — see the reconstitution guide. Once mixed, refrigerate at 2–8 °C; unmixed lyophilised powder keeps longest frozen (storage guide). Converting between units, mL and mg is covered in syringe units explained.
GHK-Cu dosing FAQs
How much bacteriostatic water for a 50 mg GHK-Cu vial?
There is no fixed amount — the volume sets the concentration. Adding 3 mL to a 50 mg vial gives 16.667 mg/mL; 2 mL gives 25 mg/mL, 3 mL gives 16.667 mg/mL, 5 mL gives 10 mg/mL.
How many units is 1 mg of GHK-Cu?
At 16.667 mg/mL (50 mg in 3 mL), 1 mg is 0.06 mL, or 6 units on a U-100 syringe. A different water volume changes this — use the calculator above.
Is there an approved GHK-Cu dose?
no established injectable dose.
What is a GHK-Cu dosage chart?
A table showing how many syringe units a given amount takes at a given concentration. The reconstitution table on this page is one, calculated for 50 / 100 mg vials.