Our shower steamers are packed with the highest quality ingredients. You may choose the best option to suit your needs. We have created our own blends to suit these shower steamers and provide assistance with different requirements. Headache Relaxation Sleep Stress Wake-up Sinus Ingredients in all blends excluding sinus: Bicarbonate Sodium, Anhydrous Citric Acid, Kaolin Clay, Isopropanol Alcohol, Essential Oil, Cosmetic Grade Colour. Ingredients in sinus: Bicarbonate Sodium, Anhydrous Citric Acid, Kaolin Clay, Isopropanol Alcohol, Essential Oil, Menthol Crystals, Cosmetic Grade Colour. Directions: Just chuck one of these on the outside of the bottom of your shower and let it slowly dissolve and release its essential oils.