★☆☆☆☆
Not accurate
Tiffany H.—June 29, 2024
Ok it turns purple in the sun great. I did a test of four different sunscreen and sunblocks to find the most effective. I put on the sticker inside my home then went outside to sun and right back inside. Applied sun screen and sun blocks to four different stickers then at 5 min mark exposed to sun. All turned purple. At 15 min mark, all turned purple and at 30 min mark all turned purple. There is no way none of these work. Read more








