SUNSCREEN in UV

If sunscreens absorb UV it means they make your skin heat up in the sun more than it would otherwise. Perhaps it would be better if they were reflective. But is that really possible? My understanding is it's easy to find materials with a precise absorption spectrum because it's about electron energy levels. Reflection is about scattering which is relatively broad spectrum depending only on the micro-structure. Red paint doesn't selectively reflect red. It reflects white and absorbs green and blue, and these effects combine a few manometers into the surface to give the impression of reflecting red. We're used to surfaces that appear to have a precise reflection spectrum in this way. But if you're interested in the energy that passes through the options seem to be precisely selective absorption (and conversion to heat) or broad spectrum reflection. I guess that's what the vendors mean with the unfortunate "chemical/physical" labeling. Thoughts? Another video perhaps?