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Sulfate-free shampoos are best for keeping hair looking its best. Sulfate dries the hair out and causes tangling and breakage.


Shampoos are made of a class of chemicals called surfactants, which have the ability to lower the surface tension of a liquid. These surface-active substances surround oily substances and dirt, which then makes it easier for water to wash them off the surface that needs to be cleaned. This ability t


According to WebMD, medicated shampoos are often used in the care and treatment of skin and scalp diseases such as psoriasis. WebMD also reports that medicated shampoos, as well as creams or oils which are used to treat skin conditions, frequently contain salicylic acid or coal tar.


Dry shampoo is a starch- or silica-based product that absorbs excess oil from your hair and scalp without the use of water, giving the look and feel of clean hair. It comes in powder or liquid form, as well as an aerosol spray, and is often used before styling hair.


TotalBeauty.com recommends the Aveeno Nourish+ Volumize Shampoo, Dove Nourishing Oil Care Shampoo, Pantene Color Preserve Smooth Shampoo and Pantene Age Defy Shampoo as the top shampoos available in drugstores. Elle magazine lists L'Oreal Paris EverPure Moisture Shampoo, Avalon Organics Revitalizing


Sunsilk, Pantene and Head & Shoulders are the most frequently bought shampoo brands. However, determining the best brand is based on preference and hair type.


Dry or no-rinse shampoo works well for virtually all types of hair. This type of shampoo works as a powder or aerosol, which can be sprayed or speckled into the hair, without water or rinsing. Dry shampoo soaks up surplus oil; and, it is appropriate for individuals possessing oily scalps.


Shampoo was invented by ancient Hindi tribes. The word "shampoo" originally comes from the Hindi language, and it means "to massage the head with hair oil." British entrepreneur Dean Mahomed introduced shampoo massaging to the public in his own steam vapor bath shop.


Shampoo is slightly acidic to neutral depending on the brand, with levels that range from 4.8 to 7 on the pH scale. Hair conditioner tends to be even more acidic, with pH levels ranging from 2.8 to 7.


The main ingredients in shampoo are water, detergents, preservatives, thickeners and conditioning agents. Some types of shampoo may contain modifiers, special additives or plant extracts.