What S Demi Permanent Hair Color. Ideally it lasts up to 24 shampoos. With heat it has the ability to lift the hair shaft and deposit color for gray coverage up to 80 percent.
Demi permanent hair color on the other hand is alkaline color with no ammonia. Typically this type of dye can last anywhere from 12 to 24 washes before completely washing out. The duration the color lasts and how deeply the dye penetrates the hair shaft.
Color bleeding can happen with both permanent and semi permanent hair color.
With heat it has the ability to lift the hair shaft and deposit color for gray coverage up to 80 percent. Wella s range of demi permanent hair colors is a step above the semi permanent hair colors you ll find in the market. This is because they last for about 24 washes and add some intense depth to your natural hair color. The duration the color lasts and how deeply the dye penetrates the hair shaft.