Every scalp produces sebum, a pure oil secreted by the sebaceous (oil) glands hooked up to your hair follicles. But, unlike the common fantasy, washing your hair does not strip it of its natural oils! Washing merely cleanses away the build-up of old oil on your hair and stops your strands from becoming limp, greasy and smelly. Your sebaceous glands will soon secrete recent oil to assist keep your hair...