Rosemary oil is one of the most popular essential oils. It has become important to us due to its various health benefits including its ability to stimulate hair growth, boost mental activity, relieve respiratory problems and reduce pain. Rosemary essential oil is mostly extracted from the leaves. The rosemary bush belongs to the mint family which includes basil, lavender, myrtle, and sage. Rosemary has been extensively used since ancient times for a variety of purposes. The health benefits of rosemary essential oil made it a favorite of Paracelsus, a renowned physician, who made significant contribution to herbal medicine during the sixteenth century. Paracelsus valued rosemary oil due to its ability to strengthen the entire body. He (rightly) believed that rosemary oil had the ability to heal delicate organs such as liver, brain as well as heart. Today, many medicinal preparations contain rosemary oil. The various health benefits of rosemary oil are given below: · Hair Care: Rosemary oil and rosemary teas are used extensively for hair care in shampoos and lotions. Regular use of rosemary oil helps in stimulating follicles, as a result of which, hair grow longer and stronger. It is also believed that rosemary oil slows down premature hair loss and graying of hair. Hence it is an excellent tonic for bald people. Rosemary essential oil is also beneficial for dry and flaky scalps. Regular massage of scalp with rosemary oil nourishes the scalp and removes dandruff. Further, it is often mixed with tea tree and basil oil to treat scalp problems. · Mouth Care: Rosemary essential oil is a disinfectant and is used as a mouth wash. It also helps in removing bad breadth. · Skin Care: Rosemary essential oil is not used in skin care as extensively as it is used in hair care. Regular massage with the oil helps in toning your skin and removing dryness. It is also considered as a beauty aid for the face. · Boost Mental Activity: Rosemary essential oil is an excellent brain and nerve tonic. It is often used by students during exam times as it increases concentration and helps in studying efficiently. It stimulates mental activity and is a good remedy for depression, mental fatigue and forgetfulness. Inhaling rosemary oil lifts your spirits immediately. Whenever your brain is tired, inhale rosemary oil to remove boredom and get fresh mental energy. · Pain Relief: The ability of rosemary essential oil to relieve pain has resulted in its extensive usage in headaches, muscle pains, sore muscles, rheumatism and even arthritis. Massaging the part which is in pain with rosemary essential oil give relief from the pain. Vapor baths with rosemary oil is found to be effective for rheumatism. · Aroma: Rosemary has a mesmerizing aroma and hence rosemary essential oil is an excellent inhalant. The oil is used in room fresheners, cosmetics, beauty aids, food, bath oil, candles and perfumes due to its aroma. The oil, when inhaled brings mental energy and also clears the respiratory tract. Many people spray mixture of rosemary essential oil and water to remove bad odor from room. · Respiratory Problems: The benefits of rosemary essential oil in treating respiratory problems are unmatched. The scent of the oil gives relief from throat congestion. The oil is used in treating respiratory allergies, cold, sore throat and flu. Since rosemary oil is antiseptic it is effective for respiratory infections as well. The oil is antispasmodic and is used in bronchial asthma. · Indigestion: Rosemary oil is often used for indigestion, flautulence and stomach cramps. Rosemary leaves are often added to meat dishes as it helps in digesting meat, especially lamb, beef and pork. Other claimed health benefits of rosemary oil include its usage for disorders in menstrual cycle, menstrual cramps, peptic ulcer, urine flow, prostrate, gall bladder, intestine, liver, cataract, heart, sperm mobility, leukemia, kidney stones and associated pain. Research is also being carried out to study its potential in treating various types of caners including colon cancer, stomach cancer, breast cancer, and lung cancer. Rosemary oil may, at times, have allergic reactions and hence it should be used only with prescription. Since rosemary oil is volatile in nature, the oil may cause vomiting and spasms. Hence it should not be consumed orally. It is suggested that rosemary essential oil should not be used by pregnant and breastfeeding or nursing women. Excessive dosage of the oil may lead to miscarriage or may affect the fetus. Rosemary essential oil is used extensively in aromatherapy as it can be used in many preparations. The oil blends well with frankincense, lavender, clary sage, cedarwood, basil, thyme, citronella, lemongrass, elemi, geranium, chamomile, peppermint and cardamom.