Each Shower Burst® pack tablets that turn your shower into a luxurious at-home spa experience. When activated by the water and humidity in your shower, the Shower Burst releases 100% pure essential oils for a true aromatherapy experience. Stress Buster - a tension easing blend of Lemongrass & Ylang Ylang essential oils Contains one each SHOWER BURST in Healing, Focus, Hangover Buster, and Stress Buster.