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Age and baseline GHK levels Natural GHK production declines with age
Formulating with AHK-Cu: DIY considerations Many researchers prefer creating their own AHK-Cu formulations rather than purchasing premade products
Works well alongside: Hyaluronic acid Niacinamide Ceramides Gentle moisturizers and lipid-based moisturizers Daily SPF (non-negotiable) Microneedling LED therapy Chemical peels (during the healing phase, not the same day as the peel) Keep separate from: Vitamin C AHAs and BHAs High-strength retinoids The simplest workaround is to alternate
The penetration rationale is borrowed, not AHK-Cu-specific
Storing vials in a cool, dark place, away from direct sunlight and high temperatures, is critical
