Matrix Color SYNC Demi-Permanent Hair Color 2oz (7R) Matrix Color SYNC Demi-Permanent Hair Color (7R)gives a Dark Blonde Red color to your hair. It comes with patented ceramide conditioning and restructuring complex to help keep hair strong and rebalance porosity for even color from root to tip. It delivers color pigments into the hair without the need for ammonia, resulting in shiny, smoother-looking hair and a softer feel.