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Two main categories of oxidative colors
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Demi-permanent colorspermanent colors
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Demi-permanent colors
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Known as long lasting semi-permanent colors
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Lower strength developer
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Used for depositing color
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Higher strength developer
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Used for lifting color
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Fillers, concentrates, intensifiers, and drabbers
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Used to modify the intensity, tonality or lasting ability of hair colors
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Lightener
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Applied directly to the scalp are generally mild with a cream or oil consistency
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Off the scalp lightener
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Powder bleaches that contain alkaline salts and are stronger and faster when lifting color from the hair
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10
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Number of stages of decolorization
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Underlying contributing pigment (examples)
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Blackdark red-brownred brownredred-orangeorangeyellow-orangeyellowpale yellow palest yellow
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Steps in color formualtion
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Analyzing the existing hair color's level and toneidentifying hair texture and porosity along the hair strand and in various areas of the headidentifying the desired color's level and tonechoosing color products, shades and developer strengths
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