Nano Particles in Sun Screens?

i had read something about nano particles in some sun screens, because people were wondering, like, is this dangerous? Is it bad? And i think it was more in the kinds that like our white and the nana particles are helping to make it invisible and to absorb into your skin. So there'd be nano particles in these sun screens, likely cause they are sort of the more physical ones we were talking about with the zinc oxide forward. But they prive nainl particles, so they rub in better than what you're picturing,. which is, like, the nineten seventys photo with the guy on his nose. What it looks like when he used to have those