Brand new, unopened Sunstar Butler CHX Mouthwash 250ml (Quasi-drug) This product is brand new and unused. Excerpt from the HP: Brand: Sunstar Liquid Volume: 250 milliliters Form: Liquid Dilution type mouthwash Sunstar Butler CHX Mouthwash 250ml (Quasi-drug) One of the causes of periodontal disease is bacteria in plaque. Kills causative bacteria throughout the mouth with chlorhexidine gluconate. Prevents periodontal disease (gingivitis/periodontitis), prevents bad breath, and prevents the onset and progression of tooth decay.