Aromatherapy Stones are created by infusing Sicilian lava rock from Mount Etna, with nature’s finest organic essential oils. The lava stones which are naturally porous, absorb the therapeutic oils and release them slowly back into the atmosphere over time, creating a lovely subtle and long-lasting scent. Simply open and place your jar where help is needed and allow the beautifully balanced aromas to take effect. The stones can be replenished as required with the 100% natural refresher oil.