When I was heavily into cycling and the distances got longer and the time out in the sun passed what my pasty skin could handle I used thick zinc cream. It was a hell of a sight because it was piled on as thickly as it would go and flys would get stuck in it so my face looked like a sh*tty piece of fly paper. It was also extremely tickley and distracting having insects squirm to their death on your face. So I came up with the bright idea of dusting the surface.. but with what? Hmm
A quick rummage around and the options were talc, sand or glitter. The talc I’d look terrifyingly like a plague victim and I didnt want to frighten children, the sand well derma abrasion for hours is a no no so... yep I took the glitter shaker and proceeded to do what no sane person would but hey I’ve never cared what others think of me and this was practical.
Everyone got well out of my way, I got a wide berth on the train (plenty of room for my bike), I terrified a cafe owner who sat me out the back in the corner of a garden and I ended up saying “it’s for charity” just so people could stop being frightened by the nutter with the glittery face.
Worked though- no burning, well from the sun at least