Don’t get yourself exposure under excessive direct sunlight. It may cause skin cancer. But how we know when the sunlight is harm to us? well, with this UVSunSense UV Monitoring Wristbands you will alert you the sunscreen of SPF 15 or higher.

As you put on your sunscreen, you also put a dab of the lotion on the UVSunSense. The band will turn purple in the sunshine, but this color will not last. So you should take note of when it turns colorless, as it will be time to put on more sunscreen.