Can one product moisturize and balance your face, body, and even your hair? Yes, if it's the right oil. And right now we're rather fond of O.N.E. Skincare ($30). It's not for everybody — quite literally, since oily complexions won't benefit as much — but if you have dry, sensitive skin, O.N.E.'s oil is a lifesaver. It's a gentle blend of olive oil, sunflower oil, lavender, and geranium that absorbs easily and doesn't feel heavy or clog pores. We like that it's certified organic without being obscenely expensive, and it smells great, like a lavender bouquet picked out with bright red geraniums. We've been using it on our arms, legs, and lips, then dabbing it on as a spot treatment for dry spots on our faces, and it's worked like a charm. It's not the most complicated product, but sometimes the simplest things are also the best.