Each box includes two Shower Bursts, a reusable Sachet and instructions for use. Headache Buster is a releasing blend of Peppermint & Lemon essential oil. Handmade in the U.S.A. These Shower Bursts turn your shower into a luxurious at-home spa experience. When activated by the water and humidity in your shower, the Shower Bursts release 100% pure essential oils for a true aromatherapy experience.