There are benefits of essential oils for hair. They can do wonderful things such as cleansing the scalp, strengthening the hair, and controlling dandruff and irritation, stimulating the follicles of the hair, improving blood circulation, and promoting hair growth. The three most popular essential oils are sage essential oil and tea tree essential oil. Sage essential oil gives stimulation to the scalp and offers promotion of hair growth. Tea tree essential oil soothes an itchy scalp naturally and helps prevent a lot of hair problems like baldness, psoriasis, dandruff, and head lice.