What, exactly, does hair oil do? Nothing dramatic. We can't say it'll get your hair to stand up straight or spin around or sparkle. It makes your hair healthy and prevents damage—about as fun as wearing sunblock on the world's hottest and sunniest day.

But hairstylists and editors—even photographers—know the difference that healthy hair can make. You might even recognize the work hair stylist Bob Recine has done for the heads of Angelina Jolie, Gwyneth Paltrow, and Lady Gaga. Now he's sharing the wealth of his scalp familiarity by introducing a new line of luxury hair oil, Rodin by Recine, made with eight essential oils, such as calendula, sweet almond, and rosemary, to keep hair healthy year-round. We have been recommending it for all of our shoots. All you need to do is apply two drops at the ends of wet or dry hair, which promises to lift hair color and prevent styling tool damage. Rodin did give his sculptures a certain luxurious, windswept effect, which is what everyone wants: not to look like marble.