LA ROCHE POSAY Effaclar Ultra concentrated facial serum Anti-imperfections Daily peeling effect It acts on blackheads Salicylic acid Glycolic acid Acne-prone skin 30ml The ultra-concentrated Effaclar facial serum is an anti-blemish , anti-blemish , anti-pimple and acts as a daily peel on acne-prone skin . Consequently it acts on: Imperfections Dilated pores Persistent signs This facial serum is effective on acne-prone skin thanks to the combination of 3 highly concentrated acids: Salicylic acid: purifies and tightens pores LHA: Gently smoothes skin texture Glycolic acid: improves cell renewal The formula of this facial serum is combined with soothing niacinamide for a daily peeling effect that fights blackheads .