The listings of research below represents a compilation of scientific articles found on the topic, with a very brief overview description of each article/study. This compilation of research articles does not necessarily imply that there are adequate results to demonstrate safe and/or effective human use of any herb listed.
RELAXANT / ANXIETY
Cedrol inhalation, as found in cedarwood, had a relaxant effect in humans, increasing parasympathetic activity and reducing sympathetic activity. From: Dayawansa, S., Umeno, K., Takakura, H., Hori, E., Tabuchi, E., Nagashima, Y., … & Nishijo, H. (2003). Autonomic responses during inhalation of natural fragrance of “Cedrol” in humans. Autonomic Neuroscience, 108(1), 79-86.
Cedrol inhalation had a sedative effects in multiple animal species. From: Kagawa, D., Jokura, H., Ochiai, R., Tokimitsu, I., & Tsubone, H. (2003). The sedative effects and mechanism of action of cedrol inhalation with behavioral pharmacological evaluation. Planta medica, 69(07), 637-641.
The cedrol constituent found in J. virginiana had an anxiolytic effect in rodents. From: Zhang, K., & Yao, L. (2018). The anxiolytic effect of Juniperus virginiana L. essential oil and determination of its active constituents. Physiology & behavior.
Cedrol inhalation resulted in a sedative effect with pupil dialation among all three groups studied: people from Norway, Thialand, and Japan. From: Yada, Y., Sadachi, H., Nagashima, Y., & Suzuki, T. (2007). Overseas survey of the effect of cedrol on the autonomic nervous system in three countries. Journal of physiological anthropology, 26(3), 349-354.
Cedarwood oil was effective against several species of ants and cedrol was effective toward ticks. From: Eller, F. J., Vander Meer, R. K., Behle, R. W., Flor-Weiler, L. B., & Palmquist, D. E. (2014). Bioactivity of cedarwood oil and cedrol against arthropod pests. Environmental entomology, 43(3), 762-766.
Cedarwood Virgina oil and its cedrol constituent showed red ant repelling activity. From: Eller, F. J., Fezza, T., Jang, E. B., & Palmquist, D. E. (2015). Field test for repellency of cedarwood oil and cedrol to little fire ants.
Chinese thuja, of the cypress family, and specifically its isolated constituent of cedrol, demonstrated hair growth in vivo. From: Zhang, Y., Han, L., Chen, S. S., Guan, J., Qu, F. Z., & Zhao, Y. Q. (2016). Hair growth promoting activity of cedrol isolated from the leaves of Platycladus orientalis. Biomedicine & Pharmacotherapy, 83, 641-647.
Compiled by: Kathy Sadowski
Pictured: Whipped invigorating aromatherapy lotion. Thanks to Mountain Rose Herbs for providing the organic products to make this recipe!