Sensodyne Complete Protection toothpaste works 24 hours a day, seven days a week to relieve tooth sensitivity. It creates a relaxing barrier surrounding the nerve deep within the tooth, so you don't have to be concerned when you eat or drink. It helps to protect your teeth and gums from decay while also strengthening them. It contains fluoride, zinc, and potassium, which not only cleans but also protects your teeth from decay. It has a calming effect and helps gum health. Its minty mix keeps your tongue clean and fresh throughout the day after each brush. It's recommended that you use it twice a day to keep your dental hygiene and oral health in check.