The UV SunSense is the perfect solution to those who always seem to get sunburned even when they apply sunscreen. The bracelet works by actually applying sunscreen to it--once you've lathered yourself, of course. Once the bracelet changes color, it means your skin needs a new coat of protection.
The UV SunSense bracelet not only tells you when to reapply (by turning brown, FYI) but it also turns pink when it thinks you've had enough sun for the day. The UV Sunsense is actually a really smart idea, especially for those with fair skin who burn easily--like me.