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Which type of hair color is best used to blend or tone gray hair?

  1. Demi-permanent haircolor

  2. Permanent haircolor

  3. Semipermanent haircolor

  4. Temporary haircolor

The correct answer is: Semipermanent haircolor

Semipermanent haircolor is the best choice for blending or toning gray hair because it gradually fades over time, allowing for a more natural-looking result. Permanent haircolor may provide too much coverage, making the grays look unnatural, while demi-permanent haircolor may not be strong enough to fully cover gray hair. Temporary haircolor is not a practical option for blending or toning gray hair as it washes out after a single wash, making it more suitable for temporary color changes.