The cassia plant from the laurel family is primarily at home in China. In skin care, their oil has astringent properties and helps blood circulation, however, it may only be used heavily diluted, as it may otherwise irritate the skin.
In aromatherapy, the cinnamon cassia has a relaxing effect and encourages feelings of warmth and security. However, it is also an aphrodisiac and stimulates creativity.
see Markus Schirner 2002 "Aromatic Oils" Schirner Verlag, Darmstadt, 4th edition 2011