Finally a Ferulic acid product that works with and does wonders for acne prone skin. Silymarin is a vitamin C serum for oily and blemish-prone skin, which helps reduce excess oil and visibly improve skin texture & fine lines. Formulated with 15% L-ascorbic acid, 0.5% silymarin, 0.5% ferulic acid and 0.5% salicylic acid, the SkinCeuticals Silymarin CF Serum is an acne-focused follow-up to the brand’s cult favorite vitamin C serum, C E Ferulic. Silymarin CF has all the same benefits that other SkinCeuticals staples have become famous for: a refined, practically filtered skin texture; fewer visible signs of aging (think fine lines and wrinkles); and a brighter, more even complexion. It is the answered vitamin C prayer for oily, blemish-prone skin.