Wella Professionals Brilliance Treatment for coarse, coloured hair is a creamy mask incorporating diamond dust from Wella Professionals. Instantly helps restore & enhance vibrancy of coloured hair, leaving it with a noticeably soft, irresistible touch. // Wella Professional's Brilliance for Coloured Hair: The perfect partner for Koleston Perfect & Color Touch with triple-blend technology & the special ingredient diamond dust. Different conditioning levels for different hair textures.