Black Tea Boosting Serum 45ml, Pyunkang YulPRODUCT INFORMATION The Black Tea Boosting Serum enhances skin elasticity with fermented black tea (kombucha), peptide, and adenosine, providing healthy energy and vitality to rejuvenate skin that has lost its strength. This serum is formulated with EWG graded green and safe ingredients, certified as zero irritation, and contains Coptis Japonica to soothe the skin. Macadamia seed oil improves wrinkles and dry skin, while seaberry awakens the skins