Natural Nasal Congestion Reliever: Special blend of 6 essential oils formulated to help clear sinuses and breathe better. Essential Oil Blend: A combination of Menthol (79%), Camphor (8.4%), Borneol (4.9%), Eucalyptus Oil (3.2%), Peppermint Oil (2.45%) with a fresh and bright scent. No-loss Cap and Pure Oil Application: This inhaler features a slide-to-open design that prevents the cap from being lost compared to other screw-top inhalers. Also, the bottom is removable to allow direct oil application. The design fits perfectly into pockets or handbags and can also be attached to a string or necklace.