Every once in a while, a beauty trend becomes so followed that it defines an era. This season, we’re spotting ’90s gloss everywhere (yup, on hair too). It’s a convenient way to style second- or third-day hair. For freshly washed hair, run some mousse through the strands to bring them all together. Once you’re done styling the rest, set your crown with a wet-look gel and strong hairspray. Even dab a few drops of shine serum for those finishing touches. No-shampoo styles have never looked better.