do humans shed more skin when sunbathing?

cross-posted from: https://linux.community/post/1079125

I've started sunbathing because... reasons.

second day: I applied sunscreen to my skin and after some 30 seconds of rubbing my arms, I started to see what I could be dead skin on my hands: tiny balls of grey and white junk, the size of one to several sand grains, but not hard to press like sand or a tiny particle of wood.

The other thing that crossed my mind is it could be rests of the chemical sunscreen I use. Has this ever happened to you with chemical screens?

Is this normal?