SkinCeuticals Silymarin CF (Acne)Silymarin CF is a breakthrough two in one vitamin C and acne serum for oily and blemish prone skin. Combined 0. 5% silymarin (milk thistle extract), 15% l ascorbic acid, 0. 5% ferulic acid and 0. 5% salicylic acid helps prevent oil oxidation that can lead to breakouts and visible signs of aging. This oil free formula is clinically demonstrated to reduce oil oxidation by up to 76%, as well as reduce oiliness, refine skin texture, and visibly improve