Thymol is a phenolic antiseptic with antibacterial and antifungal activity. It is used mainly as a deodorant in mouthwashes and gargles. Active Ingredient: Thymol 0.05% Directions: Adult : Mouth/Throat Oral hygiene; Gingivitis As glycerin thymol compound gargle: Dilute 1 part w/ 3 parts warm water before use. Use as directed. Do not swallow.