This neutralizing mask is designed to enhance extra cool blondes while delivering deep nourishment. It helps correct yellow and warm tones while improving hair softness and shine. Blonde shades appear purer and brighter while the hair fiber feels smoother and silkier. Neutralizes unwanted yellow tones Deeply nourishes and softens hair Enhances luminous, cool blonde tones HOW TO USE After shampooing, apply the mask to towel-dried hair and distribute evenly through mid-lengths and ends. Leave on for a few minutes depending on the desired neutralization level, then rinse thoroughly.