These effective UV stickers show UV intensity on the skin through color changes and help detect insufficient sunscreen in time. With the help of the stickers, you can recognize early when it is time to seek shade or reapply protection. The water and sweat-resistant stickers are ideal for outdoor activities and can be easily and reliably applied. Important: The stickers do not replace sunscreen. Therefore, always use a sufficient sunscreen factor of 30+ and reapply after swimming, sweating, or drying. Vegan and not tested on animals.