In the 2000s, the closest you could get to a near-instant hair color change was with a few spritzes of Sun-In, a hydrogen peroxide-lemon juice mix that lightens your hair without a salon visit. But in ...

If there’s anything I’ve learned after years of consistently dyeing my hair since the age of 18, it’s that coloring your hair is no simple process. While going into the salon is generally a good idea ...