Colored / Permed Hair Shampoos

They're specifically formulated to be both gentle and protective. Steer clear of clarifying shampoos — which can be harsh and stripping — except on the day before your color appointment. "If you're going for gray coverage, use one to remove silicones, waxes, and hairspray resins," says Stanko. "Otherwise, instead of penetrating the hair shaft, some of the hair dye may attach itself to those coatings and then wash out, making your color fade faster."