Beauty Skincare Editor's Picks: Nourishing Skin, Hair and Nail Oils to Try Now By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Published on October 14, 2013 @ 07:34AM Pin Share Tweet Email Photo: Paul Morigi/Getty Images for BET, Time Inc Digital Quick history lesson on beauty oils: These suddenly-seen-everywhere elixirs have been around since Cleopatra's days, and today movie stars from Marilyn Monroe to Gabrielle Union are rumored to have dabbed them on. But it wasn't until argan oil hit the scene about six years ago that they really exploded and proved to be a true miracle fix for everything from dry skin and frizzy strands to brittle nails. Today's ultra-refined (nongreasy!) formulas are often a blend of rich, hydrating botanical oils and can also be used in myriad ways, says N.Y.C. dermatologist Jeannette Graf. Click the photo to find out how to slip these essential oils into your routine.