TNS products contain a proprietary mix of human growth factors and other elements discovered through wound healing research. This complex, known as NouriCel-MD, is clinically proven to reduce the visible signs of aging. See a dramatic improvement to the look of lines and wrinkles. Skin takes on a more even tone as age spots fade. NEW from SkinMedica is Enviornmental Defense SPF 50+ with UV Proplex. PABA free, oil free, very water resistant UVA/UVB protection.