ZO® Skin Health products were developed by Dr. Zein Obagi to offer patients effective solutions for noticable skin health. This exciting line of skin care products includes formulations backed by science and advanced technology. ZO products contain ingredients that prevent and protect your skin, uncovering the clearest and healthiest canvas. Each product was created with the following in mind: age, stress, diet, environment and sun. These are the factors that contribute to visibly aged skin. ZO products help to restore your skin to its best health.