Redken ColorFusion Advanced Professional Permanent Cream Hair Color 2.1oz 12Av Redken ColorFusion Advanced Professional Permanent Cream Hair Color 12Av gives an Ash/ Violetcolor to your hair. It helps refract more light so it adds dimensions to your hair and helps reflect colors, which adds more shine. With a low odor and low ammonia, the color provides superior coverage. It can also help build up your hair strength.