The Invel Therapeutic Recharge Women's Sleepwear Shirt with Bioceramic MIG3 Far-Infrared Technology contains Invel’s MIG3® technology, which consists of a mineral compound with the therapeutic effect of traditional Far-Infrared Therapy light lamps. When the MIG3® technology meets the skin, the body’s natural heat activates the compounds, vasodilation occurs, and blood circulation improves. This assists with the removal of pro-inflammatory substances, which influences painful sensations, and increases the amount of oxygen and nutrients in the area affected, improving the appearance of the skin and a healthier body. A healthier you, begins with healthier sleep.