Key Ingredients: 15% L-ascorbic Acid: lauded for its superior antioxidant benefits, this highly potent form of pure vitamin C helps neutralize free radicals and protect against oxidative stress while providing visible anti-aging benefits 0.5% Silymarin: powerful plant-based antioxidant derived from milk thistle that helps prevent oil oxidation and provides antioxidant protection against free radicals 0.5% Ferulic Acid: a plant-based antioxidant, ferulic acid neutralizes free radicals and enhances the antioxidant benefits and stability of vitamin C 0.5% Salicylic Acid: a beta-hydroxy acid provides effective exfoliation, refines pores, and helps reduce the formation of blemishes.