How is the John Frieda Violet Crush for Blondes Purple Toning Mask different from other brands’ purple masks?

Through our proprietary penetration technology and unique blend of Blue and Violet dyes, our Violet Crush Toning Mask delivers even, perfect toning, knocking out the most stubborn yellow and orange brass. This patented technology delivers cool, ashy tones to the hair, for all over colour-deposition and toning in 1 minute.

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