Karkat asks Jade (right before cascade) "WHAT THE HELL IS SHAVING CREAM." do trolls not shave? Or maybe Karkat is too young to grow facial hair? Or maybe just ignorant? Maybe they have something similar for shaving hair but they just don't call it that.

I mean they’re bugs, the fact they even have normal hair is weird, so a lot of people see them as having no facial or bodily hair of any kind.

It’s also possible they just. You know. Call it something else like. Whipped Follicle Cleanser.