Hair washing
Hair washing is the cosmetic act of keeping hair clean by washing it. To remove sebum from hair, people apply a surfactant, usually shampoo (sometimes soap) to wet hair and lather.
Hair washing is the cosmetic act of keeping hair clean by washing it. To remove sebum from hair, people apply a surfactant, usually shampoo (sometimes soap) to wet hair and lather.
Hair washing is the cosmetic act of keeping hair clean by washing it. To remove sebum from hair, people apply a surfactant, usually shampoo (sometimes soap) to wet hair and lather.
Source: Wikipedia "Hair washing" · CC BY-SA 4.0
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