Ingredients: Sodium Bicarbonate, Citric Acid, Kaolin clay, Polysorbate 80 & Essential Oils How to use: Place shower steamer in the back of your shower, outside of the direct stream of water. As the tablet dissolves, take a few deep breaths and enjoy the calming effects of the essential oils as they mix with the steam. Shower steamers are designed to dissolve in 5-10 minutes but the effects from the essential oils last all night or day! Storage: Your shower bombs are packaged in an airtight, moisture resistant bag. It's recommended to store unused tabs in the original package with the top closed.