As we are in summer, over-processed blondes become more common. So many clients want sun-kissed tresses for the summer months, and it’s the hairstylist’s responsibility to make them progressively lighter without turning their hair to solid-colored hay. But, sometimes the damage is already done—be it box dye or another stylist’s mistake—and you are tasked with rescuing their one-dimensional color. How do you go about it?

In today’s how-to video, Matt Beck (@freesaloneducation) demonstrates a technique that adds dimension back to flat hair and tones down over-processed blondes.