Calamus Essential Oil – Possible Skin Issues:
Greener Life Diamond – Bio-Healthy Score => 3 – Possible Skin Issues:
Maximum dermal use level: 0.2%
Tisserand and Young recommend that Calamus oil be limited to 0.2% (about 1 drop per ounce of any other carrier oils) for leave-on products like ointments, creams, and lotions. There is no restriction for body washes, shampoos, soaps, and other wash-off products because the oil does not remain on the skin.
The essential oil of Calamus should be strictly avoided during pregnancy as it has the potent to stimulate contractions in the uterine cavity and induce menstruation, being an emmenagogue and might lead to miscarriage or abortion. It is also advisable to restrict the use of Calamus oil during breastfeeding.
Many studies suggest that Calamus oil may have carcinogenic or cancer causing effects and might be toxic when used in excess. The prime chemical constituents responsible for its adverse effects are β-asarone (about 78.4%), α-asarone (about 6.8%) and methyleugenol (about 2%) in Acorus Calamus oil, which is of Indian origin. Various in vivo and in vitro studies have witnessed the negative potent of β-asarone in inducing the growth of malignant tumors.
The European Council files β-asarone as “substances which are suspected to be genotoxic carcinogens and therefore no MDI can be set”. According to the 1988 European Community Council, both the European Union and the United Kingdom ‘Standard Permitted Proportion’ of beta-asarone in food flavorings must be 0.1 mg/kg.
IFRA (International Fragrance Association) suggests that beta-asarone and alpha-asarone should not be used as fragrance ingredients and the safe level of use of Calamus oil in consumer products should not exceed 0.01%. It also recommends that the highest concentration of methyleugenol in leave-on products like body lotion should not exceed 0.00004%.
Essential oils are highly concentrated substances and must be used in a diluted condition with safe carrier oils like coconut oil. It is meant only for topical application, and it is not recommended to take essential oils internally.
Ingestion of Calamus oil may end up in creating hallucinations, convulsions and potent toxicity. Acorus Calamus is one among the 30 unsafe herbs listed by the FDA (Food and Drug Administration).
According to the studies conducted in 1976 and 1977, Calamus oil is non-phototoxic and non-sensitizing when tested (patch testing with 2% Calamus oil) on 200 consecutive patients with dermatitis.
This warning is relevant to leave-on skin care products like creams, body lotions, massage oils and balms and not for wash-off items like shampoos and soaps.
Reference Links Substantiating the Possible Skin Issues of Calamus Oil:
- Acorus Calamus: Scientific Validation of Ayurvedic Tradition from Natural Resources Pulok Kumar Mukherjee, Venkatesan Kumar, Mainak Mal & Peter J. Houghton, published in the Journal of Pharmaceutical Biology
- MEDICINAL PROPERTIES OF ACORUS CALAMUS Kumar Amit, Vandana, Rajendra Institute of Medical Sciences, published in the Journal of Drug Delivery & Therapeutics
- Acorus Calamus by Examine.com
- Effects of asarone and β-asarone on conditioned responses, fighting behaviour and convulsions by P. C. Dandiya and M. K. Menon, published in the British Journal of Pharmacology and Chemotherapy
- Calamus by Drugs.com
- Toxicity of Acorus calamus rhizome powder from Eastern Nepal to Sitophilus granarius (L.) and Sitophilus oryzae (L.) (Coleoptera, Curculionidae) by R.B. Paneru , G.N.J. le Patourel , S.H. Kennedy published in Science Direct
- Acorus Calamus: An overview R. Balakumbahan*, K. Rajamani and K. Kumanan, Horticultural Research Station, Tamilnadu Agricultural University, Pechiparai, TN, India, published in the Journal of Medicinal Plants Research
- Essential Oil Safety: A Guide for Health Care Professionals By Robert Tisserand, Rodney Young
Thought for the day:
Every particular in nature, a leaf, a drop, a crystal, a moment of time is related to the whole, and partakes of the perfection of the whole.
-Ralph Waldo Emerson
- Yoga & Ayurveda: Self-Healing and Self-Realization by Dr. David Frawley
- Herbal Vade Mecum: 800 Herbs, Spices, Essential Oils, Lipids, Etc.-Constituents, Properties, Uses, and Caution by Gazmend Skenderi
- The Encyclopedia of Psychoactive Plants: Ethnopharmacology and Its Applications
by Christian Ratsch, Albert Hofmann
- The Way of Ayurvedic Herbs: A Contemporary Introduction and Useful Manual for the World’s Oldest Healing System by Karta Purkh Singh Khalsa, Michael Tierra
- New Choices in Natural Healing: Over 1,800 of the Best Self-Help Remedies from the World of Alternative Medicine by Doug Dollemore
- Essential Oil Safety, Second Edition by Robert Tisserand and Rodney Young
- Acorus Calamus by Wikipedia
- Detection of Acorus Calamus in Ayurvedic preparations by Europe PubMed Central
- Vacha: Brain Tonic by Dr. R. Vatsyayan, Ayurvedacharya
- Clarify Your Communication with Calamus by Karta Purkh Singh Khalsa published in 3HO
- Herb of the season, Vacha (Calamus, Acorus calamus) by Sai Ayurvedic College
- Vacha (Acorus Calamus Linn.): A Valuable Medicinal Plant, published in the International Journal of Ayurveda and Pharma Research