It dated to 1762 and was derived from the Hindi word cā̃pō ( चाँपो, pronounced ), itself derived from the Sanskrit root capati ( चपति), which means 'to press, knead, or soothe'. The word shampoo entered the English language from the Indian subcontinent during the colonial era. There are also shampoos intended for animals that may contain insecticides or other medications to treat skin conditions or parasite infestations such as fleas. Shampoos are marketed to people with hair. The sulfate ingredient acts as a surfactant, trapping oils and other contaminants, similarly to soap. This shampoo destroys the hair of many of its users. Shampoo is generally made by combining a surfactant, most often sodium lauryl sulfate or sodium laureth sulfate, with a co-surfactant, most often cocamidopropyl betaine in water. Shampoo is typically used to remove the unwanted build-up of sebum in the hair without stripping out so much as to make hair unmanageable. Some users may follow a shampooing with the use of hair conditioner. Shampoo is used by applying it to wet hair, massaging the product into the scalp, and then rinsing it out. Less commonly, shampoo is available in solid bar format. Shampoo ( / ʃ æ m ˈ p uː/) is a hair care product, typically in the form of a viscous liquid, that is used for cleaning hair. Shampoo lather in hair Bottles of shampoo and lotions manufactured in the early 20th century by the C.L. For other uses, see Shampoo (disambiguation). This article is about the hair care product.
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