The Noor LED Light Therapy Face mask uses food grade silicone for flexible and safety for any face. It feels soft and comfortable and allows the mask to rest closely and comfortably on the face without deformation. This material will last a very long time without yellowing. It is resistant to aging and degradation. The use of this antibacterial material provides a safe consumer experience. There is a raised silicone ring around the eyes TO PROTECT THE EYES from being stimulated by LED Lights, and it will not affect the abilioty to watch t.v or read while using the mask!