Alterna 2 minute root touch black is the perfect way to keep on top of roots and grey hairs in between visits to the salon the fast drying and flake free formula gives complete coverage and washes out in just one shampoo free from ammonia peroxide and syntheic colour it safe for coloured hair directions of use turn the brush to the on position squeeze the tube to dispense the product apply to clean dry hair concentrating on the roots turn the brush to the off position after