L'oreal Professionnel Série Expert Warm Blonde Perfector is a direct dye treatment designed for highlighted or warm blonde hair. This golden additive for all tone levels of warm blond is enriched with carefully selected pure beige pigments to enhance warm blond and neutralize unwanted tones simultaneously. L'oreal Serie Expert Warm Blonde Perfector is a great addition to the Blondifier collection to add shine and make your hot blonde look even warmer.