Supercharge your hair routine with Christophe Robin's Shade Variation Mask in the shade Warm Chestnut, an ultra-rich, salon-quality treatment by the world-leading colourist. The formula acts as a haircare pick-me-up to use between hairdresser's appointments, lending nourishment and a visible colour refresh. Made with 96% natural-origin ingredients, it works shea and almond butters and buriti oil through your lengths while keeping unwanted tones at bay. Glazing strands with a unique blend of blue pigments and liquorice extracts, watch as your hair emerges from the mask with a cool and luminous finish.<br/>After shampooing, apply the mask to towel-dried hair from roots to ends. Allow to sit for 5 to 20 minutes, depending on desired intensity. Rinse thoroughly. Washes out after 2 to 5 shampoos. For first use, leave on for a maximum of 5 minutes to evaluate intensity. Pro Tip: For a deeper, cooler tone, leave the mask on for the full 20 minutes for optimal results. May stain clothing. Avoid contact with eye area. If contact occurs, wash thoroughly with water.