GHK-Cu Dosing Calculation for Insulin Syringes
For a GHK-Cu solution at 1 mg/mL concentration, draw up 10 units on an insulin syringe per 1 mg of desired dose (since 1 unit = 0.01 mL, therefore 10 units = 0.1 mL = 0.1 mg at 1 mg/mL concentration).
Dosing Calculation Framework
The calculation is straightforward using insulin syringe mechanics:
- Insulin syringe units: 1 unit = 0.01 mL 1, 2
- For 1 mg/mL GHK-Cu solution:
- 10 units = 0.1 mL = 0.1 mg GHK-Cu
- 50 units = 0.5 mL = 0.5 mg GHK-Cu
- 100 units = 1.0 mL = 1.0 mg GHK-Cu
Proper Syringe Technique
When drawing up GHK-Cu using insulin syringes, follow established subcutaneous injection protocols:
- Air bubble removal: Draw up the dose, hold syringe upright, and flick with forefinger to allow bubbles to escape to the top 1, 2
- Dose verification: Visually inspect that the black tip of the plunger aligns with your intended unit marking 2
- Single-use needles only: Never reuse needles, as even 30-31 gauge needles can bend and form hooks that lacerate tissue or break off 1
Common Dosing Ranges in Research
Based on available evidence, typical GHK-Cu doses used in studies include:
- Intranasal administration: 15 mg/kg daily (in mouse models) 3
- Topical/cosmetic use: Concentrations vary widely in formulations 4, 5
- Systemic considerations: Natural human serum levels average 200 ng/mL at age 20, declining to 80 ng/mL by age 60 6
Critical Safety Considerations
Proper disposal is mandatory: After each injection, remove the needle without recapping and dispose in a puncture-resistant sharps container 2. Recapping attempts frequently result in needle-stick injuries 1.
Storage stability: GHK-Cu is stable in water and pH 4.5-7.4 buffers for at least two weeks at 60°C, but is susceptible to hydrolytic cleavage under basic and oxidative conditions 7.