Hyssop Oil (aromatherapy)

Hyssop Oil is a pale yellow or faintly greenish yellow to almost colorless oil of a powerful, somewhat sharp, but sweet-camphoraceous odor, and with a warm-aromatic, spicy undertone. Its flavor is warm and sweet, slightly burning or biting, but rich aromatic and herbaceous-spicy.

Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 355).