Here's your "before" — perfectly pretty, but to be honest, those roots are showing and the overall tone is less than seasonal. For advice, we reached out to John Frieda International Creative Consultant Harry Josh, and asked him what blondes could do at home. "Summer’s a good time to brighten up," he says, "because everyone wants that beachy, sun-kissed look. Look for shades that are warmer than your current color. If your hair is a cooler color, go for a neutral shade; if you’re already on the warmer side of the spectrum, look for a golden shade." Point taken.

Photographed by Dan McMahon