I've asked this before, but why don't vampires just wear sunscreen?

Sunscreen is clear when the protecting parts get absorbed سے طرف کی the skin. The sun doesn't burn them, it effects it's appearance. Sunscreen doesn't stop the sun from reflecting.

Putting sunscreen on a mirror won't stop it from reflecting

First off, sunscreen is designed to prevent sunburn, not sparkling, if that's what you're implying. The vampires wouldn't need to worry about sunburn. Besides, that would be basically like smearing oil on your skin, so that seems like it might even make the sparkling even BRIGHTER, which would not be good.

Also, sunscreen is designed for HUMAN use only, I mean, it says on the containers that it hasn't been tested on animals...

why would they, they dont really need to worry about catching the sun, and i highly doubt sun screen would stop the sparkling

I don't know why you're asking this again: you're جوابات aren't going to change.

Putting sunscreen on a vampire wouldn't do anything. Sunscreen does not stop the sun's rays from hitting objects - it doesn't even always stop humans from getting sunburned.

They sparkle because their skin is effected سے طرف کی the light provided سے طرف کی the UV rays, as opposed to other vampires that are effected سے طرف کی the intensity of the UV rays.

Sunscreen does not block light.