Obagi toner is an essential second step in the Obagi Nu-Derm System. In preparation for the other products in the system, the toner helps restore the normal pH balance of your skin, allowing the active ingredients to penetrate into your skin. Key natural ingredients in this toner help hydrate, tone and prepare skin for the other Obagi skin care products. Known for its astringent properties, witch hazel helps reduce inflammation and leaves skin feeling clean but not dried out. Aloe helps soothe, hydrate and calm your skin, while calendula extract promotes healing and regeneration of skin. Your skin will feel clean and refreshed after use. Obagi toner is designed to be used morning and night after cleansing with either the Gentle Cleanser (for normal to dry skin) or the Foaming Gel Cleanser (for normal to oily skin).