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OSMO Super Cool Zero Orange Mask Intensify your clients' brunette tones with the Zero Orange Mask from OSMO. Formulated with deep blue pigments, this intensely hydrating, sulphate-free treatment helps to counteract unwanted brassy, red, and copper tones in salon-lightened brunette-dark tones. Part of the OSMO Super Cool range, this professional Zero Orange Mask expertly restores colour balance, enhancing cool tones and leaving hair looking radiant and salon-fresh.