The magnesium and anti-yellowing agents enriched neutralization system counteracts unwanted brassiness. When hair is lightened or turns gray, its natural warm tones become visible and often cast undesirable yellow hues. The deep violet shampoo helps neutralize these tones and maintain blonde or white color. The formula provides firming results, nourishes and protects the hair fiber, and adds shine. Allergy warning test before use. Apply evenly to towel-dried hair, lather, and rinse thoroughly. In case of contact with eyes, rinse immediately. Wash your hands after use.