Dandruff is usually caused once the scalp turns out to be dry as well as flaky, causing those ugly white flakes. Olive oil is a natural moisturizer. Once massaged into the scalp, it will nourish your scalp, decreasing the appearance of your dandruff naturally, with no chemically laden shampoos. Use the treatment as often as required, till the problem fades away and after that just one or two times a week to prevent reoccurring.