Both rosemary and mint essential oils are known to increase blood circulation which allows for more oxygen to be carried to your scalp. More oxygen will stimulate your hair follicles, resulting in faster and thicker hair. If increasing your hair length is one of your top hair concerns, then you have come to the right place. For the women wearing their hair in protective styles, just a couple drops of our Rosemary Mint Strengthening Oil at your roots is what you need to keep your strands long and luscious.