There are a lot of oils out there, but if you're not going to go the super simple route (plain coconut, jojoba, or shea, for example), you'll probably want an oil blend with a few different ingredients. Something like Zelens Z-22 Absolute Face Oil under your regular moisturizer to keeps skin hydrated no matter how dry or cold it gets, but we've also had a longtime crush on Rodin Olio Lusso Luxury Face Oil, which is rich, beautifully scented, and a complete miracle worker. For a more intense treatment, try Aesop Fabulous Face Oil, which is highly concentrated with plenty of jasmine oil.