Rosemary is a woody perennial herb with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers. It is a member of the mint family Lamiaceae. Some of the most interesting and unique health benefits of rosemary include its ability to boost memory, improve mood, reduce inflammation, relieve pain, protect the immune system, stimulate circulation, detoxify the body, protect the body from bacterial infections, prevent premature aging, and heal skin conditions.