Hibiscus makes your hair look healthy and lustrous. It prevents premature graying, thickens hair, and adds volume. Also, treat dandruff. Used against frizz, dryness, and breakage to prevent split ends. The oil of lemon is known for its many virtues, lemon oil is an effective remedy often used in cosmetics. Especially appreciated for oily skin and acne, as well as greasy, dull hair and/or dandruff. The oil of lemon is known to eliminate the excess sebum on the skin as on the scalp. Using small amounts of diluted tea tree oil down the shaft of the hair will help prevent the buildup of chemicals and dead skin. This keeps your hair healthy and moisturized, which can help it grow at its normal rate and prevent it from falling out. Dandruff is caused by an accumulation of scaly, dry skin on your scalp.