100% Pure Therapeutic Grade Essential Oil Botanical Name: Thymus vulgaris. Main Constituents: Thymol: 35 - 50% p-Cymene: 15 - 32% Gamma Terpinene: 5 - 15% Carvacrol: 2 - 9% Plant Part: Leaves and stems. Origin: Spain. Blends With: Bergamot, Grapefruit, Lemon, Lavender, Rosemary and Pine. Thyme is an evergreen perennial shrub that grows up to 45 cm (18 inches) in height. It has a woody root system with a multi-branched stem, small elliptical greenish-gray leaves and pale purple or white flowers. Thyme is derived from the Greek word thymos that means 'perfume'. It was used in herbal medicines by the ancient Greeks, Egyptians and Romans, as incense in Greek temples, and in embalming by the Egyptians. During the Middle Ages it was given to jousting knights for courage, and a sprig of thyme was later carried into courtrooms to ward off diseases (as well as to freshen the air). Note: The active ingredient, thymol, may crystallize in temperatures below 20 degree Celsius. We would recommend placing the bottle in a very hot water bath, and changing the water frequently until it is back to its liquid state. Be sure to shake before use. Cautions: Red Thyme contains a high amount of toxic phenols (carvacrol and thymol) that can irritate mucus membranes, and must be diluted well before use. Avoid use if under the care of a physician. Cautions: Dilute very well before use; for external use only