L'Oreal Professionnel Serie Expert - Blondifier Cool Blonde Perfector 150ml/5.1oz

An anti-yellow violet additive for highlighted or color-treated light blonde hair Helps neutralize undesired yellow undertones while enhancing cool blonde hair Includes carefully selected violet dyes that should be mixed with Blondifier Mask or Serie Expert Powermix Treatment. Guarantees long-lasting results, shampoo after shampoo For professional use only