SkinCeuticals Silymarin CF with 15% L-Ascorbic Acid, 1ozAn oil free vitamin C serum formulated specifically for oily and blemish prone skin types that delivers advanced environmental protection and reduces oiliness, refines skin texture, and visibly improves skin clarity and fine lines. SKIN TYPES: Oily, Combination SKIN CONCERN: Acne, Aging FEATURES: Silymarin CF is a breakthrough vitamin C serum for oily and blemish prone skin that combines 0. 5% silymarin (milk thistle extract), 15% l ascorbic acid, 0.