Dandruff is the unhealthy replacement and removal of dead cells in the scalp. In a normal person, this process takes about a month and the dead cells are slowly removed. However, the fast production and removal of cells is what causes dandruff as the natural oil on our scalp causes this dead cells to fuse together and become larger. Dandruff can be caused by a fungus which appears to be dormant in most people. Dry scalp, unsuitable hair products, age, being male, internal disorders, hygiene problem and lack of vitamin B or zinc are some of the causes of dandruff.
To prevent or control dandruff we must have proper hygiene, consume foods rich in vitamin B and zinc, avoid scratching scalp with nails, avoid stress, add garlic in our foods, use antifungal shampoos and apply coconut and aloe vera oils.