Tria Skin Perfecting Blue Light Using the Tria Blue Light is quick, easy and fits into your skincare routine however you like. Simply insert the treatment cartridge and touch the device to your skin. It turns on automatically when it's against your skin and turns off whenever you lift it, or when your session is done. Use it for a total of five minutes per day on clean, bare skin. That's all there is to it!
Blue Light - How To Use