Refill bottle holds over 60 cleanings ensuring dental appliances stay clean, fresh and sanitary. SonicBrite Dental Cleansing System is the safest and most powerful system to keep retainers, dentures, mouth guards and more clean. Powder is unflavored and unscented. Gentle enough to rid of buildup and tough enough to rid of stubborn stains like coffee or tea. Bottle is 7 oz.