Oily Skin? Recipe: Combine 3 teaspoons ground oats and 1/4 teaspoon apple cider in a bowl until a smooth paste forms. Then add 1/4 tablespoon lemon juice and 1/2 tablespoon brown sugar; stir until the mixture is even. Apply to freshly cleansed skin and let sit for five to 10 minutes, allowing ingredients to penetrate top layers of the skin. Then rub in circular motions to exfoliate and increase blood-flow. Rinse off with warm water and pat dry with a towel.