There’s also UV exposure stickers. I haven’t used them, but the idea is that you put a small sticker on your skin, and apply sunscreen normally and over the sti

There’s also UV exposure stickers. I haven’t used them, but the idea is that you put a small sticker on your skin, and apply sunscreen normally and over the sticker. Then when the sticker on you turns purple, you know that you have to reapply.