Deciding "when to wash hair before color or highlights" involves understanding the optimal time for preparing hair for chemical treatments. This decision can impact the vibrancy and longevity of colored or highlighted hair.
Washing hair before coloring or highlighting removes dirt, product buildup, and excess oils, allowing the color to penetrate more evenly. Traditionally, stylists recommended washing hair 24 to 48 hours before color services. However, with advances in hair care products, some experts now suggest washing hair closer to the appointment for better color absorption.