Kay Beauty Brow Studio Eyebrow Pencil is one thing that you need to fill, define and shape your brows. 100% waterproof & sweatproof, this brow pencil will give you easy and natural looking brows. With its unique pencil to powder formula, you will have bushy brows of insta dreams in no time! Infused with Algin that nourishes your brow hair while you add the right amount of intensity to your brows, it comes with a texture that is firm enough to create the tiniest of lines and glides on smoothly to mimic hair like strands.