Unlike toothpaste, mouthwashes are generally transparent liquids, and taste and taste are more important. Most mouthwashes claim to prevent and eliminate bad breath. In mouthwash, deodorant can be added to prevent and eliminate bad breath, and taste Receptor Blocker can be added to improve taste and inhibit bad Taste.

According to the function of mouthwash, functional additives include antibacterial agents, astringents, anti caries agents, anti plaque and gingivitis compounds, anti-inflammatory agents, desensitizers, deodorants, etc.