31 Bestselling Beauty Products Sephora Shoppers Can't Get Enough of This Summer

If you're going just one more day without water touching your scalp, this popular Living Proof Perfect hair Day (PhD) Dry Shampoo ($14-$36) is a quick refresher. Not only are there sweat- and oil-absorbing powders alongside odor neutralizers, but this dry shampoo also has the brand's patented healthy hair molecule that lets these substances (and whatever dirt they've absorbed) easily rinse out afterward.