Even your manicures can go green! InStyle's beauty experts named Zoya's nail polishes the best eco-friendly nail polish on the market in this year's Best Beauty Buys list, thanks to its five-free formula (no formaldehyde, formaldehyde resin, toluene, DBP, or camphor). All 300 colors—like the top seller, Rekha, a creamy blood-red—reach full opacity in two coats. Shop for your favorite shade for $8 each at zoya.com.
Plus, see more Best Beauty Buys of 2013!