Shampoo
- This article is about the personal hygiene product shampoo. There is also a 1975 Hollywood motion picture named Shampoo, starring Warren Beatty, Julie Christie, Goldie Hawn, and Lee Grant; see Shampoo (film).
A shampoo is a traditional Indian and Persian body massage given after pouring warm water over the body and rubbing it with extracts from herbs.
Since the early 20th century, the term "shampoo" has also been used for commercial liquid soap products for washing hair. Shampoo is designed to produce plenty of lather that removes dirt, without removing the natural oils that protect the hair. The product is made slightly acidic to cause the hair to contract slightly, giving it a shinier appearance. It is possible to make mild shampoos at home with natural ingredients for daily wash. Shampoos should be chosen according to hair types. Some shampoos also contain hair conditioners.
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Specialized shampoos
There are shampoos available specifically for those who have dandruff. Popular brands are Head & Shoulders and Selsun Blue, which contain zinc pyrithione and selenium sulfide, respectively. Both chemicals are fungicides, and reduce dandruff by killing Malassezia furfur.
Shampoo for infants is formulated so that it does not irritate the eyes.
Shampoo for animals (such as for dogs or cats) often is formulated so as not to irritate their eyes — so baby shampoo is often an excellent substitute — or might contain insecticides or other medications for treatment of skin conditions or parasites such as fleas or mange.
Shampoo is also available in solid form that is rubbed onto the hair: this has the advantage of having the shampoo easily carried, but also has the disadvantage of working less efficiently on longer hair.
Shampoo is also a fictional character in Ranma 1/2Brands
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