Shower steamers are an excellent option. Place them on the corner of your floor shower. Allow water to activate the steamer. The vapor will release quickly for you to enjoy the benefits of menthol and essential oils! These shower steamers should keep going for more than one shower, reliant upon the length of the shower and contact with water. To make your shower steamer last more, eliminate from water once done. Size: 4 oz Ingredients: Sodium bicarbonate, cornstarch, distilled water, menthol crystals, citric acid, fd&c dyes, and 99% alcohol.