Simply switching to a gentler shampoo can easily treat most cases of mild dandruff. Managing stress, eating better and cutting back on styling products may also be an effective dandruff treatment.
Sun exposure has also shown to be helpful, just make sure to use a sunscreen when going outdoors. For more persistent cases an over-the-counter medicated shampoo is needed.
Look for shampoos that contain active ingredients such as zinc pyrithione, salicylic acid, tar, selenium sulfide and ketoconazole.