Rosemary Essential Oil stimulates Central nervous system and circulation making it beneficial for low blood pressure and low energy and sleeping sickness. Eases asthma and allergies. It improves concentration and memory and keeps you alert on long hours of study and work. Few drops of oil while hair oiling or wash restores dry, flyaway hair and make it shiny may prevent premature baldness. It prevents uterine spasms and menstrual cramps.