That what I’ve told all my girlfriends. They’ve all said I have beautiful eyelashes and they want to know if I do anything to them.
I have literally never touched an eyelash besides wiping one out of my eye.
When I had shoulder length hair, I washed it with head and shoulders every other day and never got split ends.
Now some of that is probably genetics, but also I do think that so many beauty products that women are sold is designed to keep them buying shit to “fix” things that their body will eventually fix on its own. Humans didn’t evolve washing their hair with 3 different soaps every day. Hair just kind of takes care of itself, and the only thing that might need fixing is dandruff.