Straight razors and elaborate makeup drawn in ashes mixed with motor oil.
People that shave their underarms completely and people that shave neat precise lines into them to make it clear that I can, I just don’t.
Raiders may kill you and zombies may kill you but background radiation will kill everybody eventually, what’s a little more toxicity compared to a Geiger counter that will never shut up? Looting the art supply store and painting designs onto each other in oils, the cadmiums and phthalos no longer forbidden against skin, the rich bright saturated colors a second long-term death option.
Men, meanwhile, that grow beards and oil them, wash them, shape and brade them intricately, shave tiger stripes or leopard spots or mandalas or band logos into the hair on their chests and arms and backs, or shave themselves hairless to display that they have time and resources and very, very sharp things.
(When you are struggling to survive, when you are burdened with labor, putting effort into your appearance is a status symbol. It says you are successful enough to have spare time, spare energy, spare resources. It might say you would make a good partner, mate, friend, ally; it might say you are formidable to fight. It might say you have resources that can be appropriated by your killer, and this might be a baited trap.)