Mar 29, 2019· Method 1 Applying Kaolin Clay on your Skin. Use two teaspoons of clay, two teaspoons of aloe vera, and a couple drops of tea tree oil to make a potent acne mask or a mask to treat oily skin. Mix three tablespoons of clay, two tablespoons each of lavender and chamomile, and a quarter of a cup of colloidal oatmeal to make a mask for treatments on sensitive skin.