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Purple Shampoo
Hello, does anyone know what the ph should be for making a purple shampoo? acidic or alkaline?
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4 Replies
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Shampoos are generally acidic.
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Just asking because I had success making purple conditioner, which is acidic, but not a shampoo, it is acidic too but it does not deposit the pigment.
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It depends which colorant you’re using to deposit the color. If you’re using acid violet 43, you’ll need a specific grade.
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pH 5.6
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