While your skin should look radiant already, a highlighter or luminizer is the final step that will amp up the glow factor. Scibelli recommends using a cream formula, which melts seamlessly into skin for a lit-from-within vibe. When it comes to shade selection, as a general rule, warmer, champagne tones look more natural then cool, silver hues, he says. Becca Shimmering Skin Perfector Poured Creme Highlighter in Champagne Pop, $38, is one universally-flattering option. Since you want the overall effect to be dewy and fresh, not greasy or overly shiny, "apply the highlighter only around the perimeter of your face, avoiding the center where skin is naturally oilier," he says. That means dabbing it on your cheekbones, brow bones and the top of the bridge of your nose, but avoiding the middle of your forehead and chin.