Shopping for anything online can be risky. That's why free returns were invented, am I right? But there isn't anything as difficult to shop for online than beauty products. Foundations can be the wrong shade, perfumes can smell totally different than their romantic descriptions, and that universally flattering nude might not be as universal as you thought. One product recommendation from a friend can lessen the chance of a product mishap, but what about recommendations from thousands? It might sound like a fantasy, but it's not. These ten products are the top sellers this month on Net-a-Porter. How's that for a recommendation?