Demi vs Semi what is the difference? Demi-permanent color is a color that requires a developer, or a low level of peroxide, to be activa
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Semi-Permanent vs Permanent and Demi-Permanent Hair Color
What is the difference between semi and demi hair color? - Quora
Semi-Permanent vs Permanent and Demi-Permanent Hair Color
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Semi- & Demi-Permanent Hair Color
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