Rosemary oil is derived from Rosemary, an herb that has been used in medicine and culinary for ages. People can use this highly concentrated oil in so many ways. It is known for its antiseptic, soothing, pain relieving, anti-inflammatory, antiviral, stimulant and other beneficial properties. Its pleasing scent can be spread using diffuser to eliminate negativity, enhance concentration, reduce nervous tension and bring clarity in thoughts. This oil can also be used topically.