Kosas founder Sheena Yaitanes, a Los Angeles-based painter with a background in organic chemistry, used her artist’s knowledge of color to create shades that compliment virtually any complexion. Her artistic/scientific approach resulted in a line of lipstick shades that are incredibly easy to wear. Made with organic, hydrating botanical oils and shea butter (they’re also free of almond oil, since Yaitanes’ daughter, after which one shade is named, has a severe tree nut allergy), the lipsticks are beautifully pigmented—some stunning enough to be the only accessory you need to tie a look together, some subtle enough for a weekend walk.