Each hair has a sebaceous gland connected to it , and sebaceous glands continue to secrete sebum will . If you do not wash your hair for a long time , a large number of sebaceous gland secretions will cause hair to become very dirty , but also the hair root -sum game , causing dandruff , dermatitis and even hair loss and other diseases. Not only can regular shampooing too much time cleaning the hair surface sebum , the eradication of fungal culture medium to prevent a variety of head diseases, but also to aesthetics .
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