Despite my best skin-care efforts, a number of sneaky lines have cropped up on my forehead. But instead of running to the dermatologist for help, I've been applying this primer before my makeup. It fills in each crease -- just like spackling before painting -- and it's completely invisible. Plus, it's packed with hyaluronic acid, which has long-term wrinkle-plumping benefits.

Dove celebrity hairstyle Mark Townsend told me he's been using this oil on his clients since he first got a sample many, many months ago. And if it's good enough for Jennifer Lawrence, Lea Michelle and the Olsen twins, it's good enough for me.

It's incredibly hydrating, largely because of the African macadamia oil, which has a molecular composition that's similar to the lipid layer of human hair. (Translation: it absorbs really well.) I like to use a small amount on my ends before I blow dry my hair, and I rub some between my palms and use it to smooth flyaways and frizz after it's dry. But I really, really love to use it as a treatment. I apply it to dry hair, let it sink in for 20 minutes and then wash it out. Tada! Soft hair for days.