I cant speak for Patrick's sun screen usage...
. But I have noticed, after a few decades, that deer are scared of human odor. Not so much gas, bacon grease, smoke or whatever else you may have stuck to you. If your human odors drift by their nose your in trouble. They smell bacon, gas and dogs all year long when we aren't in the woods bugging them. That's just my finding, others will have dramatically different spins.