It is distilled from the flowers, stems and leaves of the plant. This oil is helpful to treat wounds, burns, colds, flu, fatigue, digestive trouble, headaches, asthma, bronchitis, gout, rheumatism, liver and gall bladder problems, water retention and poor circulation. For a massage, rosemary oil is often mixed with a base oil or two like almond, apricot kernel or hazelnut oil. It is good for the hair as it is said to increase circulation to the scalp and promote hair growth. Never use this oil internally and avoid it, if you’re pregnant or suffer from high blood pressure or epilepsy.
Rosemary was well known and used in the ancient world. It was believed to improve memory.