Matrix Color Sync Demi-Permanent Color 6BC Dark Blonde Brown Copper 3.1 Ounce 90 Milliliters No Ammonia Matrix Color Sync demi color offers a bold rich full-bodied look with rich reflects from scalp to ends. This gives 75% grey coverage. The hair is left toned and polished! This gives 2 times more conditioning that lasts up to 20 shampoos.