SkinCeuticals Silymarin CF Antioxidant SerumSkinCeuticals Silymarin CF Antioxidant Serum is a powerful oil free vitamin C serum tailored for oily and blemish prone skin types. Formulated with a potent combination of 15% L ascorbic acid, 0. 5% ferulic acid, 0. 5% silymarin (milk thistle extract), and 0. 5% salicylic acid, this serum provides advanced antioxidant protection against environmental aggressors while reducing oiliness and refining skin texture. It helps prevent oil oxidation that can