Look Sexy All February Long With These Beauty Must Buys

My Achilles's heels are my brows. I have two bald patches right above my arch, which are annoying, to say the least. So when Sarah Lucero, Stila's global executive director, introduced me to the brand's new brow products, I was overjoyed. The Stay All Day pen ($21) is a new and improved version of the classic, with more realistic shades. The bristles mimic tiny eyebrow hairs, which makes filling them in look natural and effortless. The brow gel ($34) is great for creating gigantic Cara Delevingne brows in a pinch. And because they're both waterproof, they stay put from sunrise to sunset.

— KJ