The JJ Young Duo Face Mask (Zone T and Zone U) firms up the T zone and hydrates the U zone. This mask is recommended for skin with oily tendencies and imperfections. JJ Young designed the purple face mask to control excess sebum, exfoliate your skin (gently) and unclog your pores from the T zone (the area of the bridge of the nose, forehead and chin), the zone most likely to shine like a 80s disco ball. The green mask is for the U zone, the zone most likely to be dry like the desert and to blush very easily on a daily basis, the JJ Young green face mask is to be applied to your cheeks and the contour of your face to hydrate you. deeply, firm and soothe your skin. It is advisable to use on cleansed skin, apply the purple mask on your T zone (forehead, nose and chin) and the green mask on your U zone (cheeks and face contour). Leave on for 10 to 15 minutes and rinse with warm water.