The 7 Rules of Getting Your Hair Colored

A fresh hair color doesn’t only elevate your look, but also boosts your mood, confidence, and, hell, even the ferocity of your head toss. And then there’s the lackluster dye job, which can make you feel like crawling under the covers and never emerging (“But it’s not just hair!” you wail as you curse Pinterest for not reminding you that strawberry-red only works on a select few—and by a select few, we mean Emma Stone). Because no one wants to leave the hair salon filled with regret o...