How does sunscreen actually work?
In: 6
Sunscreen is a colour of paint or pigment that absorbs UV light, rather than absorbing visible light like regular paints do. By absorbing the UV light right there at the skin’s surface, it prevents the UV light from striking the skin itself and causing sunburn damage.
Basically, it blocks your skin from UV light the same as painting yourself with black paint would block visible light from hitting your skin.
To prove this, look at [what sunscreen looks like under UV light](https://twitter.com/skinhealth_inst/status/1057029457238732800). It looks like black paint! [You can draw with it.](https://www.youtube.com/watch?v=YUY3EM4PtaI)
Latest Answers