Pink Clay Mask with Bentonite and Tea Tree Oil Anti-Blemish Get beautiful skin with the Belle Nubian Pink Clay Mask. Say goodbye to imperfections, wrinkles and fine lines… Directions: Apply an even layer to dry, freshly cleansed skin using the applicator brush provided. Leave on for 10 minutes or until completely dry. Gently remove with warm water and pat dry. Frequency: use 2-3 times a week if you have oily to combination skin, or 1-2 times a week if you have dry or sensitive skin.