8 Best Salicylic Acid Shampoos – 2018 Buying Guide & Top Picks

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Sebum is often overlooked as a cause of hair less because people think it’s normal to have oily hair. It is, and it can even keep your health healthy. However, in excess amounts, sebum could cause hair follicle death, and eventually, significant hair loss. Sebum is made of fats that clog hair follicles, potentially causing fungal infection as well as weakening the hair roots.