RAY Acne prone skin serum 30mlRemove dead skin cells, reduce excessive sebum production and achieve a more even skin tone with Ray's serum for acne prone Skin. Mandelic acid removes dead skin cells and helps prevent clogged pores. Niacinamide reduces excessive sebum production and can help minimize the visibility of acne scars. Apply three to four times a week in the evening directly on your face and spread evenly over your face and neck, after cleansing and before applying Ray's