hello sensitivity relief fluoride toothpaste with coconut oil is gentle and effective. it relieves sensitivity pain, gently whitens teeth and is thoughtfully formulated with moisturizing coconut oil, soothing aloe vera, and other thoughtful ingredients while helping to prevent cavities and protect enamel. hello sensitivity relief fluoride toothpaste contains the maximum FDA-approved amount of potassium nitrate, which desensitizes tooth nerve endings and reduces tooth sensitivity. sensitivity pain should diminish within two to four weeks of brushing.