The Serum Shelf: What the Crown Keeps by the Mirror

Mature-skin serums are having a moment, and the formula is no mystery: hydrators paired with proven actives, retinol, hyaluronic acid, niacinamide, doing the quiet work of smoothing fine lines and fading dark spots. It's the kind of routine a titleholder keeps as disciplined as her wardrobe—unglamorous, unshowy, and entirely the point before the lights come up.

With reporting from Vogue.