Ingredient or product comparison
GHK-Cu Cosmetic Lyophilized Powder: Formulation Comparison
Lyophilized Powder Yes. Bacteriostatic water at 2mg/mL 24 months at −20°C 30 days at 2–8°C High. Copper complex intact until reconstitution Research applications requiring precise dosing and maximum shelf stability Pre-Mixed Solution No. Ready to use 6–12 mont
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- Lyophilized Powder
- Yes. Bacteriostatic water at 2mg/mL
- 24 months at −20°C
- 30 days at 2–8°C
- High. Copper complex intact until reconstitution
- Research applications requiring precise dosing and maximum shelf stability
- Pre-Mixed Solution
- No. Ready to use
- 6–12 months at 2–8°C
- Moderate. Copper oxidation begins immediately upon manufacturing
- Convenience-focused applications where immediate use is prioritized
- Serum or Cream Base
- No. Formulated with stabilizers
- 12–18 months at room temperature
- 6 months at room temperature
- Low. Copper degradation accelerated by lipid peroxidation in cream matrix
- Consumer cosmetic products with extended room-temperature shelf life