The reason you should choose ZO Skin Health by Zein Obagi, MD is because it is not just a treatment line, nor is it solely a maintenance line. ZO Skin Health offers a continuem of care for what ever state your skin is currently in. The range is respected because it comes from renown dermatologist Dr Zein Obagi who has been involved with prioneering skin care and skin treatments for more than 30 years. The range is based on sound principles of skin health and will affect the skin at dermal and epidermal layers to create real and lasting change. With the ZO Skin Health Circle philosophy you can be assured that there will be a treatment or product for every skin type regardless of ethnicity, age, gender or condition. Dr Obagi's legacy is to give everyone the opportunity to have healthy skin and that opportunity is ZO Skin Health.