What Is The Difference Between Semi And Demi-Permanent Hair Color

Semi-permanent and demi-permanent hair color are both types of hair dyes. However, there is a key difference between the two. Semi-permanent hair color is a deposit-only dye that does not contain any ammonia or peroxide. It adds color by staining the outer layer of the hair, but it does not penetrate the cuticle to affect the color of the hair shaft. Semi-permanent color will gradually fade away after several shampoos.

Demi-permanent hair color is a deposit-only dye that contains a small amount of ammonia or peroxide. It adds color by staining the outer layer of the hair, and it slightly penetrates the cuticle to affect the color of the hair shaft. Demi-permanent color will last longer than semi-permanent color, and it is often used to enhance or blend existing hair color.

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