Description Thought to impart courage to its bearer, thyme was given to knights and warriors before they went into battle by ladies of the Middle Ages. During this same period, thyme was often placed beneath pillows before rest. Sold both fresh and dried, thyme has a history of use in wellness practices but is mostly known as a spice in culinary dishes. Warm and herbaceous, CPTG® Thyme essential oil contains thymol, a chemical constituent preclinical studies indicate may be helpful in skin care and in oral hygiene. Because of its high thymol content, Thyme should always be diluted with a carrier oil before topical application.