Edited sentence: " by Leo Hickman, Guardian Unlimited Money, March 3, 2005, retrieved September 26, 2006." taken from "Do we need to wash our hair."Left to their own devices, our own natural oils in effect wash our hair without water or extra products.As hair is self-regulating shampoos and conditioners are not needed to keep hair clean.Contrary to popular rumour, all hairstyles can be washed; for example, Rastafarians can and do wash their dreadlocks.However, hair-washing appears to be a near universal culturally-sanctioned hygienic practice.In fact, hair products have been shown to over-stimulate oil glands and attract dirt.Of course, there is no actual biological need to wash hair.Shampoos, conditioners and other cosmetic products strip the majority of natural oils leaving the scalp unprotected and irritated and the hair appearing 'lifeless'.The scalp produces an organic oil which protects the scalp from dust, dirt and bacteria and keeps the hair soft and moisturised