What it is: A dual-phase, 15 percent pure vitamin C that reduces the appearance of dark spots, fine lines, and pores.Skin Type: Normal, Dry, Combination, and OilySkincare Concerns: Dark Spots, Fine Lines and Wrinkles, and DullnessFormulation: SerumHighlighted Ingredients:- Tetrahexyldecyl Ascorbate (THD): One of the most stable and effective forms of vitamin C.- DP-C: Ascorbic acid and glutathione (amino acids) conjugated to gold.- Youth Juice: Proprietary blend rich in antioxidants and responsibly sourced in Mexico