What it is: A waterproof, liquid eyeliner for cat-eye perfection in just one stroke. Ingredient Callouts: Free of parabens. This product is also cruelty-free. What Else You Need to Know: This innovative brush tip lays down semi-matte, blacker-than-black pigment with precise application. The new, ultra-fine, flexible brush tip gives you full control over your shape and flick. Plus, the waterproof formula keeps on going until you say “when.”