Colgate PerioGard mouthwash is formulated to help promote gum care. This Low Staining formula is suitable for pre and post-surgery patients. It is alcohol-free which effectively reduces the formation of dental plaque. For best results rinse using 15 ml of non-diluted solution in the morning and night for 30 seconds after brushing. Spit it out after rinsing. At least every six months users should visit their dentists for check-ups.