Outside References Sikiric P, et al
Reduced cellular protection, impaired detoxification, increased inflammation, and accelerated biological aging
Very good
Suitability should always be assessed on an individual basis, with a qualified physician considering overall health, skin condition, and treatment goals to ensure safe and appropriate use
This is exactly why its the hero ingredient in both Vitalis 2% GHK-Cu Restorative Skin Cell Serum and the 3% Medical Grade Skin Cell Regenerative Serum

Additional Caution May Be Appropriate If You: Have highly sensitive or reactive skin Are prone to allergies or cosmetic skin irritation Have rosacea-prone skin Are currently utilizing strong exfoliating acids or active skincare ingredients Have a compromised, damaged, or irritated skin barrier Avoid Cosmetic Application To: Broken skin Open wounds Severely irritated areas Areas experiencing active irritation or heightened sensitivity Cosmetic Formulation Considerations Lower introductory concentrations are commonly preferred when beginning new cosmetic peptide formulations Patch testing is recommended before larger cosmetic application areas Gradual introduction into cosmetic skincare routines is generally preferred Formulation compatibility with other active skincare ingredients should be considered If uncertain whether a cosmetic peptide formulation is suitable for a specific skincare routine, consultation with a qualified skincare professional may be considered prior to cosmetic use