One of the most common causes of scalp dryness is using oils that are not suitable for your scalp. If you have dry scalp, look for oils that are specifically formulated to nourish and hydrate the scalp, such as jojoba, argan, emu, Sunflower seed, Grapeseed, hemp or Rose oil. Avoid using Coconut, olive, avocado or mineral oil , as they can further dry out the scalp. Additionally, try to limit how often you wash your hair to no more than once a week and use lukewarm water as hot water can strip away natural oils from the scalp. Finally, make sure to apply a Daily moisturizer after washing your hair.