Ingredients: Potassium Nitrate, Sodium Monoflouorophosphate. Uses: Hypersensitivity occurs when receding gum-line exposes dentin and microscopic holes, that leads directly to the inside the teeth. Nitra gel used regularly targets the source of pain and soothes the nerves while keeping the teeth sparkling & clean it lets you enjoy hot, cold, sweet and sour food without the nagging pain. Nitra gel combination Potassium Nitrate and Fluoride desensitizes, prevent caries and reduces plaque.