NURI LED thermal system combines the power of 4 technologies in ONE device. The LED light therapy, thermal technology, ionic technology and sonic vibrations, are combined to rejuvenate your complexion as well as boost the performance of your favorite skincare products & sheet masks. NURI Mask Infuser uses thermal technology to open the pores to ensure maximum absorption, while the sonic technology helps push the beneficial ingredients for even product absorption. The negative electrons in ionic technology create a circuit to pull the positively charged skincare ingredients deeper into the skin. This, combined with the UV free LED technology, offers treatment for all skin concerns: Red (anti-aging) Blue (acne) Green (brightness) Purple (repairing damaged skin). Who Should Use NURI? All skin types.