What vitamin am I lacking if my scalp is dry?
Vitamins D, B2, B3, B6, B7 are usually associated with a flaky scalp. A deficiency of these vitamins can directly impact the immune system and increase the risk of inflammation. Essential Fatty Acids. Essential fatty acids like omega-3s are important for nurturing a healthy scalp environment. Deficiency in these fatty acids can contribute to a dry, itchy scalp and brittle hair prone to damage. Doctors can check for essential fatty acid deficiency through blood tests that measure omega-3 levels .