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Factors like skin type, pigmentation severity, and product concentration all influence the timeline

GHK-Cu is a naturally occurring copper peptide complex studied for collagen production, skin health, wound healing pathways, hair follicle support, and cellular regeneration in clinical research

The experimental design included five groups: Control group, Model group exposed to UV radiation, UV + MTX group treated with 0.1 g/mL of methotrexate, UV + EHMF-L (125 g/mL) group receiving low-dosage of EHMF, and UV + EHMF-H (500 g/m) group treated with high-dosage of EHMF

Helps to minimize visibility of pigmentations and dark spots