This brush-in gel provides colour to your greying mustache, beard or sideburns. This colour gel is formulated specifically for colouring coarse facial hair with a thicker, more penetrating formula that covers greys and comes with a brush to make application fast and simple. It works in just 5 minutes, and each package is good for multiple colourings. This ammonia-free formula lasts up to 6 weeks - until the grey grows out.