Distinctively fragrant. It is described as having an evergreen citrus-like scent. Using Rosemary essential oil can be beneficial to you in a variety of ways: to improve brain function, relieve pain, lower stress levels, promote hair growth, promote circulation, and even as a bug repelent! Can be used in a diffuser, or applied to the skin! Be careful never to apply essential oils directly to your skin, always use a carrier agent like coconut oil or mineral oil.