Long popular in Japan for its purifying qualities, Binchotan charcoal is created by burning oak branches over extremely high temperatures and then rapidly cooling them. The result is the highest quality activated charcoal. This Binchotan charcoal eye mask helps to relieve fatigue by easing pressure on the optic nerve and promoting blood circulation to the eye area. The simple yet revolutionary four-layer structure features a sheet of Binchotan charcoal layered into the mask which emits infrared rays that gently help stimulate blood flow to heal and soothe the eye area. The eye mask is fragrance-free, smooth and silky to the touch, with a soft and comfortable padding to pamper your eyes. It is great for relaxation, meditation, stress relief, sinus pain, airplane travel and a restful sleep. Your entire body will feel the benefit.