Scientifically designed to combat metallic taste caused by chemotherapy, also known as chemo mouth, and many other medications. Relief is also for those who many experience taste disorders from other treatments, medications, and diseases. It is safe, easy and convenient to use. Don’t suffer with bad taste anymore – enjoy food and your life. Just use 1 teaspoon to rinse your mouth for 30 seconds as needed. You don’t need a lot compared to an average mouthwash. This 8oz bottle has a lot of relief in such a small size.