Obagi NuDerm System Full Size Kit - Normal to Oily Skin (Rx)The Nu Derm System is an anti aging therapy that penetrates below the skins surface to transform skin cell functions at the cellular level and correct the damage within, revealing healthy, younger looking skin. Skin aging is a natural process, but daily sun exposure can contribute to premature aging, slowing down the turnover of skin cells between healthy new cells and old damaged cells. The Nu Derm System combined with tretinoin* is clinically proven