A hair concealer that helps erase roots and blend away greys features a mineral-rich formula that dries quickly provides a temporary solution between colorings that washes out with one shampoo does not flake or rub off once dry suitable for light to medium blonde hair with natural, single-processed or highlighted caramel tones free of ammonia, peroxide and synthetic color safe for color treated hair stylist 2 minute root touch-up temporary root concealer - 30ml/1oz a hair concealer that helps erase roots and blend away greys features a mineral-rich formula that dries quickly provides a temporary solution between colorings that washes out with one shampoo does not flake or rub off once dry suitable for light to medium blonde hair with natural, single-processed or highlighted caramel tones free of ammonia, peroxide and synthetic color safe for color treated hair.