Preventative Acne Treatment Treat your skin with a daily serum to stop breakouts, speed healing, and repair. Interrupts the acne production cycle. Beta Hydroxy and Azelaic Acids and Retinol exfoliate and help clear blemishes. Aloe Vera, Arnica and Panthenol calm inflammation and promote skin renewal. How to Use: Use immediately after cleansing and toning. Dab serum on the skin and then smooth over face, avoiding eye area. Follow with the Erno Laszlo treatments and moisturizer prescribed specifically for your skin. If excessive dryness occurs, reduce application to once every other day. 50 ml/1.7 oz.