What Is Sebum, and How Does It Affect Our Hair?
The primary role of our skin is to contain our organs, regulate body temperature, and act as a barrier. It is made of minerals, proteins, and fats, and its ability to perform these roles depends on an equilibrium of those three elements. Our scalp skin is the same as the rest of our body’s skin, only covered with hair. To protect and keep the head-surface healthy, sebaceous glands lubricate sebum – an oily mixture of fatty acids, glycerides, waxes, and other lipids.
Sebum’s primary roles are to balance the skin flora, protect the skin from infections, and prevent moisture loss on the skin surface. When glands work overtime, sebum spreads to strands, making them oiler. The secretion quickly becomes a mix of dust, bacteria, and minerals clogging the pores, often resulting in itching, unpleasent smell, and seborrheic dermatitis.