Colgate Plax Mouthwash Freshmint is an essential step in cleaning hard-to-reach areas in the mouth and combating plaque and gingivitis more efficiently. Colgate Plax Mouthwash give long lasting fresh breath, contains fluoride to help prevent cavities. 12 hours protection against germs & plaque. Colgate Plax Mouthwash developed with & clinically tested by dentists