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Could shampoo be history? Millions of us use it. Is it necessary? Fewer people are using it. They are changing their hair-washing habits. A study on shampoo said: "People are working from home…and fewer people are smoking, so [they] are using less shampoo." A hair website said shampooing often may be why hair gets greasy. It makes the scalp dry, so the head produces more oil, which you have to shampoo again. Not shampooing mean less oil.
Many people say shampoo is good. A top hairdresser said there is no benefit to not using shampoo. He said it is gentle on your head and makes the hair look shiny and glossy. He added that the hair's oil doesn't clean it. A hair loss clinic said: "Rinsing your hair is not…effective after…activities that make the scalp sweaty, such as exercising or using a sauna….Rinsing will also not remove bacteria or clean the [extra] oil from your scalp if you have greasy hair."
Back to the shampoo lesson.