Dandruff can have several causes, including dry skin, seborrhoeic dermatitis, not cleaning/scrubbing often enough, shampooing too often, scalp psoriasis, eczema, sensitivity to hair care products, or a yeast-like fungus. Dry skin is the most common cause of flaking dandruff.Dandruff may be caused by a tiny fungus, so essential oils with antifungal properties are the first category I would look into. Specifically, research oils are
1. Tea Tree oil
2. Lavender Essential oil
3. Rosemary Essential oil
4. Other Essential oils Against Dandruff