Z-FRESH mouthwash contains Chlorhexidine Gluconate, Sodium Fluoride and Zinc Chloride. Chlorhexidine Gluconate is a disinfectant and topical anti-infective agent to prevent oral plaque. It is antimicrobial and bactericidal. Sodium Fluoride is used to prevent cavities. It makes teeth more resistant to decay caused by acid and bacteria. Zinc Chloride is a necessary trace element in the diet, forming an essential part of many enzymes and playing an important role in protein synthesis and in cell division.