Acne? Age Spots? Irritation? Let’s work it out. Radin Skin Centre introduces ZO Medical by Zein Obagi MD, ZO Medical is a skin care line developed for specific concerns, such as Acne, hyperpigmentation, and irritated skin. Medical grade skin care is necessary to help combat medical skin conditions. ZO Medical will help you gain control of your skin conditions and maintain the results all the while improving the overall appearance of your skin.