Dr.Hsieh's Lab. Smart GHK-Cu Essence is a lightweight serum that targets visible signs of aging and supports skin firmness. The fast-absorbing, slightly gel-like texture layers well under moisturizers and suits normal to mature skin types seeking collagen support. Fragrance-free and formulated for daily use, it's appropriate for those preferring clinical-feeling treatments with a straightforward, efficacy-focused approach.
Ingredient Safety
No risk2
Low risk3