Using the Lux Clinical is a breeze. First, charge the device fully using the rechargeable battery. Then, turn it on and choose the treatment mode that suits your needs: anti - aging, acne, or both. Hold the device with the triangular treatment head close to the area you want to treat, like under your eyes or around your nose. The proximity sensor will work to ensure proper treatment. Spend just a few minutes each day on the treatment. Remember, this is an FDA - cleared OTC Class II medical device, so use it as directed. Don't expose it to extreme temperatures or moisture. If you have any skin sensitivities, it's a good idea to test it on a small area first. To keep it in good condition, clean the treatment head gently with a soft cloth after each use. The device comes with a 1 - year manufacturer's warranty, so if you run into any problems, reach out to the manufacturer.