Made with all natural ingredients (baking soda, citric acid and corn starch) and scented with invigorating menthol and other fragrances. Each steamer is about 2.5 ounces. Available single or in sets of 4. Scents available: 1. BREATHE: Ingredients: baking soda, citric acid, corn starch, menthol and peppermint essential oils, color. 2. SANDALWOOD ORANGE: Ingredients: baking soda, citric acid, corn starch, menthol, orange essential oil and sandalwood fragrance, lake color. 3. LEMON ORANGE: Ingredients: baking soda, citric acid, corn starch, menthol, lemon and orange essential oils, lake color. 4. LAVENDER:Ingredients: baking soda, citric acid, corn starch, lavender essential oil, lake color. How to use: Place shower steamer on the floor of your shower or as close to your head as possible when showering. Allow some of the water to hit the steamer, but keep it away from direct jet of water, and allow it to dissolve slowly.