Eyebrow RefectoCil simply look better! Light brows can be accentuated by a dark tint; dark brows can be lightened to match dyed blond hair or to be co-ordinated in brightness and colour with any hair colour. Indeed, it is currently the trend to match the eyebrows to red-dyed hair, using the new shades RefectoCil No. 4 chestnut and RefectoCil No. 4.1 red.