Deep Cleaning Cat Litter Facial Mask by Lexi Kielly Deep Cleaning Cat Litter Facial Mask4 teaspoons green clay Instructions: Blend the papaya in a blender or food processer until it is smooth. Add in all of the other ingredients and blend. Apply to your face and neck avoiding the eye area. Leave on for 15 to 20 minutes. Rinse off this facial mask with luke warm water. Instructions: In a bowl squeeze the lemon juice over the kitty litter. Add water a bit at a time and stir until you have made a paste. Apply the facial evenly to your face and neck. Leave on for 15 minutes and wash off with warm water.