Chemical Services第 79 / 100 题
A conditioner or acid-balanced rinse generally helps to:
a.Raise the pH strongly
b.Lighten the hair color
c.Remove all oil
d.Close the cuticle and smooth and detangle the hair
解析
Conditioners, often slightly acidic, help close the cuticle, add moisture, and reduce tangling after cleansing. This restores smoothness and shine, especially after an alkaline service.
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