Finally, the truth on this point. Even if we prefer to ignore it, the body secretes oils and cellular waste, evacuated by the skin and the scalp. This is the reason why we need shampoo!
Sebum (made up of oils and cellular waste) plays an essential role in the hydration of hair and skin and allows them to resist water. Without sebum, the skin would dry and peel prematurely, exposing young cells to the outside elements.
Unfortunately, the development of sebum can grease the scalp and hair, which is hardly an option in our Western culture. The sebum should be controlled, unless you are planning to go to a desert island for a week.
Should you wash your hair every day? You’ve heard everything and its opposite about it. This is because the body secretes oils and cellular waste, which make up sebum. The skin and the scalp evacuate this and ends up accumulating in our hair. This is the reason why we need to shampoo regularly.