Rosemary (Rosmarinus officinalis) has a long history of use from the time of the Greeks and Romans, with appearances in royal gardens, poems, and as a study aid. Rosemary essential oil is a great addition to an office or dorm diffuser, or anywhere a mental boost is needed. This marvelous mental stimulant is said to encourage alertness, and improve memory. It can also be diluted and used topically to massage sore muscles. THERAPEUTIC QUALITY OIL YOU CAN RELY ON: When evaluating a potential source for essential oils, Davina will consider many aspects such as growth conditions, production, and storage procedures. Environmental factors such as elevation, climate, soil texture, organic matter, composition and temperature can impact the health, vitality and essential oil production of medicinal plants. These variables, among others, like harvest time, processing procedures and storage conditions, influence the quality and quantity of essential oils the plants produce. We ensure our oils are sourced from optimal environmental conditions using the best production methods. The result, is Davina offers the most potent and pure therapeutic quality oils available.