We put in a lot of efforts to make sure that our skin is well-moisturized and tend to forget the layer of skins underneath the hair. If we have dry skin, most likely will have a dry scalp too. Dry skin is the most common cause of itchy and flaking scalp. Scalp oil moisturizes scalp better than the cream or lotion as it stays longer on the scalp. Jojoba oil is most commonly used. Others include almond, flax seed, or olive oil. Apply the scalp oil on wet hair, it prevents oil getting into hair. Choose shampoo with citrus oil, tea tree oil or chamomile oil as they rinse out oil treatment effectively.