Aids in the prevention of cavities. Helps prevent gingivitis. Helps interfere with the harmful effects of plaque associated with gingivitis. Helps control plaque bacteria that contribute to the development of gingivitis. Builds increasing protection against painful sensitivity of the teeth to cold, heat, acids, sweets or contact. Products containing stannous fluoride may produce surface staining of the teeth. Adequate toothbrushing may prevent these stains which are not harmful or permanent and may be removed by your dentist. This Crest is specially formulated to help prevent staining. Deep cleaning formula. Healthier gums and stronger teeth.* This toothpaste contains ActivClean Crystals for advanced stain prevention. Active strengthening toothpaste: Strengthens teeth enamel on the inside, protects the outside of teeth against acids in everyday foods.** *Fights plaque and gingivitis. Strengthens enamel. **Acid erosion effects: Acids in everyday foods can soften and thin enamel, leaving teeth less white, weaker and sensitive.Active Ingredients: Stannous Fluoride 0.454% (0.16% w/v Fluoride Ion)