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Definition: Semi-permanent hair color is defined as color that is deposit only and typically lasts 4-6 weeks depending on the hair's porosity and condition. Semi-permanent hair color usually has low or no ammonia and is a great options for clients that are concerned with the damaging effects of peroxide. Semi-permanent color will not completely cover grey but it can be used for blending it. Shop â¾.
At Minardi Salon, we use permanent hair color when we want to lighten the hair. For matching, toning, refreshing faded ends, placing lowlights or enriching natural color, we use demi-permanent hair color. Demi-permanent hair color products are mixed with a dedicated (usually low volume) developer.The dye molecules do penetrate into the cortex, as well as coat both the cortex and the cuticle of the hair. They are not removed after multiple shampoos.or matching, toning, refreshing faded ends, placing lowlights or enriching natural color, we use demi-permanent hair color. Demi-permanent hair color products are mixed with a dedicated (usually low volume) developer.