The GlU by reVive Light Therapy anti-aging system is a clinically proven solution that makes the skin look and feel more youthful. Enjoy more youthful-looking skin in just minutes a day. The reVive Light Therapy GlU is one of our most powerful and portable devices. High output medical grade multi-wave LED technology delivers professional treatment results in a small and portable yet economical design. Experience the future of LED skin treatments! FDA-cleared, OTC Class II medical device. Minimize the appearance of smile lines, crows feet, brow lines, and more. Enhances skin tone and color. Great for sun and age spots. It can be used anywhere on the body, not just on your face. Stimulates your natural collagen and elastin. Powered by 3 AAA batteries. The “shut off” safety feature helps preserve battery life. So now when you’re carrying the device around in bag or purse it will not accidentally turn on and drain the batteries!