Alkaline WaveAcid Balanced WavesAmmonium ThioglycolateWhat layer of the hair is responcible for holding the
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natural hair color?
What color is hair that has eumelanin?
What kind of permanent waving solution would you use on hair that is course and resistant?
What is the most common reducing agent with no color or odor?
When would you shampoo the hair during a relaxer service?
What relaxers are
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