Goldwell Colorance 4R Dark Mahogany Brilliant 60 ml. Goldwell Colorance delivers a rich, shiny color with an amazingly healthy hair feel for all hair types. The hair dye offers fantastic shine and illuminates the multidimensional nuances. The gray coverage ensures a particularly natural look. Each shade deepens the color and refreshes the tone. Features of Goldwell Colorance: up to 75% gray coverage, color brilliance, color refreshment and shine, vibrant multidimensional nuances, durability of up to 25 hair washes.