Maximum dermal use level: 1.25% to avoid phototoxicity
The International Fragrance Association (IFRA) recommends that Bergamot oil be limited to 1.25% (about 7 drops per ounce of any other carrier oils) for leave-on products like ointments, creams, and lotions used on skin exposed to sunlight. There is no restriction for body washes, shampoos, soaps, and other wash-off products because the oil does not remain on the skin.
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Bitter orange oil exhibits mild photosensitivity effects if the oil is oxidized, which might cause irritation and hyper-pigmentation of the skin when skin is exposed to sunlight within 12 hours of usage. The major cause being the response of the chemical components that are photoactive in nature attracts light and ends up in toxicity via molecular alterations.
The safe dermal use level of Bitter orange oil by the International Fragrance Association (IFRA) is 1.25%, specifically to avoid phototoxicity in the products used for topical application and not for soaps, shampoos and other bath preparations. This No-observed-adverse-effect-level (NOAEL) is based on various studies with Bitter orange oil on mice and swine, where the No-observed-effects-level (NOEL) was found to be 6.25%.
The major chemical constituent responsible for the skin sensitization and mild irritation of Bitter orange oil is Limonene, which accounts to about 90% of this oil, and certain other furanocoumarins.
According to European regulations, essential oils with furanocoumarins should be used in such a way that the overall level of bergapten does not exceed 15 ppm (parts per million) in ready-to-use cosmetic products meant for use on the skin surface that are exposed to sunlight (other than wash-away products) and 1 ppm in sunscreen and bronzing items.
Use Bitter orange oil only for external use. Iingestion of this oil should be avoided strictly, as internal use of this oil has adverse effects according to various reports. Medical research studies state that the presence of stimulants like octopamine, amines synephrine (an alkaloid with almost the related chemical structure to ephedrine in Ephedra – Ma-Huang) and N-methyltyramine are responsible for the cardiovascular toxicity of Bitter orange and this is also reported to cause increase in blood pressure and vasoconstriction.
Bitter orange should be avoided by patients with tachyarrhythmia, hypertension and narrow-angle glaucoma, mainly due its potent to cause additive effects. Overdose of synephrine in children overdose ended up in tachycardia, nausea, quick increase in blood pressure and irritation. Certain researches witness the effect of Bitter orange in restraining human cytochrome P450 3A (CYP3A) in the test tube studies.
Just like Grapefruit, Bitter orange is said to hold back a vital enzyme in the small intestine, and this may possibly have an effect on the levels of blood, when taking certain medications like antiviral, anti-anxiety, antidepressant drugs, statins and calcium channel blockers and along with the intake of caffeine.
Care should be taken if Bitter orange oil is used in massage in the abdominal area, as essential oils penetrate quickly through the skin, reach the bloodstream and may cause adverse effects. It is not recommended to take Bitter orange products when using other prescribed medications, except under strict medical supervision.
Furocoumarins are also used in various remedies on par with long-wave ultraviolet light therapy for the healing of mycosis fungoides, vitiligo and psoriasis.
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Maximum dermal use level: 0.7% to avoid phototoxicity
The International Fragrance Association (IFRA) recommends that Lime oil be limited to 0.7% (about 4 drops per ounce of any other carrier oils) for leave-on products like ointments, creams, and lotions used on skin exposed to sunlight. There is no restriction for body washes, shampoos, soaps, and other wash-off products because the oil does not remain on the skin.
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Lime is a small evergreen tree that produces a small, sour fruit very similar to Lemon. The fruits themselves are green in color with a fleshy interior. Historically, limes were used to prevent sailors from developing scurvy.
Lime is indigenous to Asia and is now cultivated in numerous countries like America, West Indies and Italy. This evergreen tree bears white flowers and glittering green fruits. India is the largest Lime oil producing country in the world and Lime was introduced into Europe initially by the Moors and was then spread slowly to America. Lime essential oil is extracted by cold press method from the peel of the fruit.
The leaves of the Lime tree were used in the prehistoric period for treating poisonous bites and swellings. Apart from its medicinal uses, Lime has been used in making pickles, sauces, desserts, jams, confections, sorbets, marmalades, beverages, squashes, perfumes, household cleaners, detergents, soaps, cosmetics and other beauty products.
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Lime essential oil has a photosensitizing effect that can cause irritation of the skin, allergic reactions, burning sensation, phytophotodermatitis, hyperpigmentation (change of skin color, visible especially in people with white skin complexion) and certain other effects. The photosensitizing effect can last up to 12 hours after application.
The primary chemical constituent responsible for the photo-carcinogenic, skin sensitizing and other topical effects of the essential oil of Lime is Limonene and certain other furanocoumarins.
A 2014 study published in the Journal of Community Hospital Internal Medicine Perspectives reveals about a skin condition called as phytophotodermatitis, induced by Lime, where a 24-year old nurse came up with red demarcated tender patches and crusted vesicles after squeezing fresh limes and going out in sun on a bright day.
Phytophotodermatitis is defined as a nonimmunologic eruption of the skin that occurs after its contact with phototoxic components in certain plant varieties and is then exposed to ultraviolet A (UVA) radiation through visible sunlight.
Few other studies also witness the effects of photosensitization of Lime and Lime-based products containing psoralens, paving the way for burns, blisters, bullae, eruption, erythematous vesicles, rashes, inflammation and hyperpigmentation. It is also been said that in certain severe cases, systemic toxicity come with the rashes, which includes nausea, vomiting and fever.
Lime oil has also been reported to promote tumors, when tested on rats where most of the papillomas were benign and few were malignant.
The safe dilution level of Lime oil is 0.7%, which is 4.2 drops per ounce of any carrier oils as per the International Fragrance Association (IFRA). This safe dilution level applies only for leave-on products like lotions and creams and is not applicable for wash-away products like soaps, shampoos and other bathing products.
Lime oil has ‘Generally Recognized As Safe (GRAS)’status by FDA (U.S. Food and Drug Administration). As per the European regulatory body, essential oils with furanocoumarins must be used in such a way that the level of bergapten should not go beyond 15ppm (parts per million) in ready to use cosmetic products after which the skin is subjected to exposure of direct sunlight and this does not apply for wash-off products. The level of bergapten should be 1 ppm in bronzing and sun protection products.
For your information, Furocoumarins are also used in healing practices on par with long-wave ultraviolet light therapy for treating vitiligo, psoriasis and mycosis fungoides.
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The International Fragrance Association (IFRA) prohibits allyl isothiocyanate in fragrances. Since allyl isothicyanate is the principle component of mustard essential oil, it is not suitable for use in soaps and cosmetics.
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Mustard oil is regarded as one of the most unsafe essential oils mainly due to the presence of Allyl isothiocyanate and erucic acid (a toxic monounsaturated omega-9 fatty acid). According to the U.S. National Center for Biotechnology Information (PubChem), Allyl isothiocyanate compound is poisonous by skin penetration and ingestion. It is also known to emit toxic fumes when exposed to high temperature.
The European Union has prohibited Mustard oil as a cosmetic ingredient and the International Fragrance Association (IFRA) has forbid the use of this oil in fragrances. Allyl isothiocyanate in Mustard oil is not recommended for therapeutic use, primarily due to its toxicity, irritating nature and rigorous lachrymatory effect (potent to produce tears) that draw a question mark on the safe use of this oil in the healthcare industry.
Generally, essential oils are listed with possible safe levels for therapeutic purposes but there is no viable information on the safe levels for the use of Mustard oil.
The immune system of mammals reacts excessively to allergens thus generating antibodies known as IgE (Immunoglobulin). Allergic reactions are further caused when these antibodies move to cells that discharge chemicals.
The most prominent adverse skin effects of Mustard oil are allergic reactions due to IgE, itchiness, redness, severe skin irritation, followed by blistering and irritation of the mucous membranes as well.
Prolonged use of Mustard oil on skin might interfere the function of the skin, thus augment the loss of water of epidermis and subsequently modifying the epidermal keratinocytes structure.
Few sources also state that inhaling of Mustard oil might end up in irritation of the eyes, nose, mucous membrane, respiratory system along with an obnoxious sensation in the head.
Tests on Chinese hamster cells proved the genotoxic effects of Allyl isothiocyanate and is also said to cause transitional cell papillomas and hyperplasia, when tested on male rats.
Mustard oil should be strictly avoided by pregnant women as it has the potent to induce uterine contractions and may lead to unusual bleeding and miscarriage and safety measures for using this oil during nursing is also not witnessed.
Mustard oil has the tendency to lower the levels of blood sugar and might interfere with your regular medications for diabetes and low blood sugar may obstruct surgical procedures, thus it is recommended to avoid Mustard oil for about 2 weeks before and after your scheduled surgery.
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While there are no regulatory restrictions on the use of Scots Pine oil, the oxidation products of alpha-pinene and delta-3-carene can cause skin sensitization. Pine oil should be stored in dark bottles and cool locations to avoid oxidation. The use of antioxidants in formulations containing pine oil is also advised.
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Originally from around the Mediterranean basin, this evergreen tree can grow up to 25 – 30 feet and the bark is a reddish-brown that is deeply fissured with needle-like leaves that grow in pairs, and pear-shaped cones. Historically it has been used in steam baths and massage oils.
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The essential oil of Pine Scotch is said to cause mild skin irritation, contact dermatitis, sensitization, allergic reactions and irritation of the mucous membrane. It has been certified as GRAS (Generally Regarded As Safe) by the FEMA (Flavouring Extract Manufacturers’ Association). The chief chemical components responsible for the adverse skin impacts of Pine Scotch oil are α-pinene, delta-3-carene and limonene, mainly due to their autoxidation effects.
As Pine scotch oil has the tendency to irritate the lining of the mucous membrane during inhalation, it is good to avoid this oil if you have asthma, allergies in the respiratory passages and bronchial disorders.
Never use Pine scotch oil in an undiluted form and make certain that you always blend essential oils with gentle carrier oils like coconut oil and olive oil, as organic essential oils are very concentrated and may cause negative effects on the eyes, skin and the body. Stay safe by using diluted Pine scotch oil and avoid using it on allergies, damaged skin, eyes and inflammatory skin conditions.
It is better to avoid the use of Pine scotch oil if you are pregnant or nursing as there is insufficient information on the safe use of this oil during these sensitive times when the system experience enormous changes in the hormonal functions.
These possible skin issues are applicable only for leave-on products like creams and lotions and not for rinse-off products like soaps, shampoos and other bath preparations.
Maximum dermal use level: 0.01% to avoid phototoxicity
The International Fragrance Association (IFRA) recommends that Tagetes oil be limited to 0.01% (about 1 drop per 16 ounces of any other carrier oils) for leave-on products like ointments, creams, and lotions used on skin exposed to sunlight. There is no restriction for body washes, shampoos, soaps, and other wash-off products because the oil does not remain on the skin.
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Tagetes oil is said to cause phototoxic effects mainly due to the presence of limonene, just like the citrus oils. It expresses skin sensitization if the oil is oxidized and it is best to avoid oxidized and old oils. Essential oils that are phototoxic in nature can cause skin sensitization, irritation of the skin, contact dermatitis, hyperpigmentation and certain other allergic reactions.
Tagetes oil should not be used on skin that will be exposed to direct sunlight within 12 hours of application.
The maximum level for dermal use is 0.01% according to the International Fragrance Association (IFRA), on the parts of the skin that are exposed to sunlight and is not applicable for rinse-off products. IFRA recommends this safety level based on the unpublished study of RIFM (The Research Institute for Fragrance Materials).
SCCP (The Scientific Committee on Consumer Products) suggests that, since “no safe limit of use in cosmetic products has been demonstrated”, Tagetes oil and its absolutes should be avoided for use in the manufacturing of Cosmetic products.
Tagetes oil is said to cause allergic reactions like skin rashes for people who are generally allergic to daisy flowers and any other flowers from the plant family, Asteraceae, including Chrysanthemum, Marigold and Ragweed.
Never use essential oils internally and for topical application, ensure that you blend Tagetes oil with gentle carrier oils, as essential oils are highly concentrated substances and may harm the skin, when used directly.
Sufficient information is not available on the safety of Tagetes oil and higher concentration might be tough to resist. So it is bestto avoid Tagetes oil on children, pregnant women and nursing moms.
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The International Fragrance Association (IFRA) recommends that Wormwood oil be limited to 0.4% (about 2.4 drops 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.
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Wormwood oil is considered as a narcotic oil when used in higher doses. The adverse effects of Wormwood oil is attributed to the presence of chemical constituent thujone, which contributes to about 50 percent of the oil. Thujone containing oils are restricted prevalently, mainly due to the concern of its psychotropic, nephrotoxic and neurotoxic effects. It may cause skin irritation, redness, eruptions in sensitive skin and dermatitis.
Studies witness the excitation of the autonomic nervous system due to convulsions and binding of the GABA receptors caused due to α and β-thujone. It is also a known fact that high amount of thujone and its metabolites can induce convulsions, unconsciousness, seizures, gastrointestinal cramps, insomnia, tremors, dizziness, hallucinations, vomiting, headaches, retention of urine, renal lesions, congestive heart failure and rhabdomyolysis (collapse of muscular fibers).
Wormwood should never be used internally as there are numerous studies witnessing the severe toxic effects of ingesting this oil and few cases include absinthism and the acute renal failure due to rhabdomyolysis in a person who drank about 10 ml of Wormwood oil; In an another case, the intake of 60 ml of Wormwood oil ended up in seizure, altered mental faculty, attention disability, rhabdomyolysis and hyperthermia.
Blend Wormwood oil in mild carrier oils like Coconut oil or Avocado oil before topical use as pure and organic essential oils are highly concentrated substances and can harm the skin surface if used in a concentrated form. The safe level of dermal use for this oil is 0.4% by IFRA (International Fragrance Association).
The PanAfrican Medical Journal study talks about the burning effects of Wormwood herb, where a 50 year old woman reported a severe pain in the facial skin with a dry and delicate erythema in the cheeks and forehead classified as an initial degree burn.
With thujone being the toxic component, using Wormwood oil can act as a threat to pregnancy as it may affect the health of the uterus with its emmenagogue and abortifacient effects and is good to continue avoiding this oil during lactation as well.
It is advisable to restrict the use of this oil on children as they have a sensitive skin. Wormwood oil can also cause allergic reactions on the skin for those who are susceptible to plants of the Compositae/Asteraceae family like the Marigold, Ragweed, Chrysanthemum etc.,
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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.
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Latin Name: acorus calamus Alternative Name: sweet sedge, sweet grass, sweet root, myrtle grass, cinnamon sedge, rat root, gladdon, flagroot, beewort Forms Available: essential oil, CO2 extraction
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.
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Calamus is native to Asia and Europe and has been found growing across Australia, South Africa, North America, New Guinea and Reunion. It has its name mentioned in the Old Testament and was talked about in Exodus as an element of the sacred anointing oil of the Bible.
It was also denoted in the Chester Beatty papyrus VI, which approximately dates back to 1300 BC and Papyrus used Calamus with various other ingredients in preparing a bandage to appease stomach ailments.
Calamus has been a vital part of the traditional healing system of various countries for more than thousands of years in the treatment of numerous medical conditions.
The primeval Egyptians trusted Calamus root as a potent aphrodisiac for its effectiveness in augmenting the health of the reproductive system. Calamus was added to wine in Europe and it also forms a part of absinthe.
The Penobscot people believed that Calamus root helped in healing prolonged sickness that was plaguing the people for a long time. They also steamed all through the homes to ward off illnesses and the dried roots were strung together for preservation.
The people of the Potawatomi community used the dried Calamus root powder for treating catarrh. Indonesians use this aromatic root as a flavoring agent in the preparation of meat, sea foods and other vegetarian cuisines.
The traditional Turks used this herb for all kinds of infections and it is used in preparing cough drops. It is also been used in the Traditional Chinese medicine, Siddha and Ayurvedic healing systems for its carminative, laxative, sedative and diuretic properties.
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Camphor essential oil should not be confused with the compound of the same name. The crude exudate of the camphor tree contains about 50% of the compound, camphor. Camphor essential oil is distilled from this exudate and contains very little camphor. Instead, it contains mostly limonene, p-Cymene, a-Pinene, and 1,8-Cineole.
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Latin Name: cinnamomum camphora Alternative Name: laurel camphor, gum camphor Forms Available: essential oil, crystalized extract, leaf
The Camphor tree can grow up to 35 meters (100 feet) and camphor is found in every part of it. The Essential Oil is extracted by steam from the chipped wood, root stumps and branches, and is then rectified. White camphor oil is the first distillation’s fraction. In China and Japan, Cinnamomum camphora must be at least 50 years old to produce oil, and can often grow as old as a thousand years. The wood has been used in the construction of temples and in ship-building because of its durability and aromatic properties.
Camphor oil has been determined to be toxic in various studies, when used in excess of the prescribed quantity. According to the safety report, the acute toxicity of Camphor oil is said to be exhibited by contact with the skin, eyes, inhaling and ingesting, and ingestion of Camphor oil should be avoided strictly mainly due to its chronic effects on the liver (hepatotoxic – toxic to the liver).
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Using Camphor oil topically might also cause skin sensitization, irritation, skin allergies like hives, itching, rashes, swelling of the face and lip dryness. Camphor oil used as direct contact with the skin without any dilution in appropriate carrier oils is considered a dangerous skin irritant. Never use Camphor oil on cuts, broken or peeled skin.
It is highly recommended to avoid Camphor oil during pregnancy and breastfeeding, as it gets quickly absorbed by the placenta and may cause physical and neurological damage to the developing fetus and in nursing mothers there are possibilities of Camphor being absorbed through skin cracks and pass on to infants through milk (might cause damage to the infants’ liver and central nervous system).
Do not use Camphor oil on patients with bronchitis, asthma, epilepsy and Parkinson’s disease, as it can cause convulsions, increase spasms, seizures (by accounting to chemical disparity in the brain) and worsen the situation. It is also not recommended for high blood pressure patients as it is frequently used in the treatment of low blood pressure.
The safe level of use of Camphor is up to 3% dilution in case of liniments. As per the Dutch Information Medicamentorum, the safe usage level of Camphor is 20 to 100 mg/g for chest rubs, 0.15 mg/ml for nasal sprays, 20 to 50 mg/g for nose ointments, 1 to 70 mg/g for pruritus lotion and 40 to 250 mg/g in oils for muscular pain. However 11% is regarded as the maximum level of safe usage in all kinds of dermal applications.
Camphor, according to the Poisons Information Monograph, an International Programme on Chemical safety states that the major risks of ingestion of Camphor are renal damage, colic, anxiety, convulsions, nausea, delirium, gastric irritation, irritation of the mucous membrane, asystole, apnoea, chronic post-convulsive coma and difficulty in breathing occur after ingesting about 2 grams of Camphor (acute toxicity level) and 4 grams are possibly lethal for adults and 1 gram for children and may cause death.
This report also denotes that the major target organs for Camphor damage are the upper respiratory tract, liver, kidneys and the central nervous system. Certain studies witness the immediate collapse in infants soon after the application of Camphor to their nostrils.
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Aromatherapy & Health Uses: Coughs; Colds; Fevers; Rheumatism; Arthritis.
Traditionally, both the leaf and crystallized extract are used for wet lung conditions such as asthma and bronchitis. Camphor is useful in depression, exhaustion, and stomach cramps and to improve circulation.
Camphor is incorporated into salves for external use to kill parasites and treat ringworm, scabies, and itch. The oil open the lungs, making breathing easier, and helps with muscular and joint pain, arthritis, and bruises -not for open wounds. The salve functions as a “smelling salt,” and the herb has been used internally to revive those in coma or delirium. Camphor can be burned to purify the air or inhaled to open lung passages.
Caution: Do not use this herb if you are pregnant or if you are very weak and debilitated. Only natural plant extracts should be used, as chemical camphor is contaminated with industrial poisons.
Other Uses: In solid form Camphor is added in small amounts to Lunar and Chastity type mixtures, Eucalyptus or Lavender oil may be substituted. Divination; Prophetic Dreams; Psychic Awareness. Burn in the home to purify the air and to dispel disease.
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Maximum dermal use level: 0.05%
The International Fragrance Association (IFRA) recommends that Cinnamaldehyde (the chief constituent of Cassia oil) be limited to 0.05% (about 1 drops per 3 ounces 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.
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Cinnamomum cassia, also known as Chinese cinnamon or Chinese cassia, originated in South China. This tree serves several purposes and is hence widely cultivated in India, Indonesia, Laos, Malaysia, Taiwan, Thailand and Vietnam. With its celebrated use in the Traditional Chinese Medicine, Cassia is regarded as one among the 50 fundamental herbs of China.
Cassia Essential Oil has a pungent, warm scent from its 1% to 2% volatile oil that is mainly responsible for the spicy aroma. It is a strong top note.
The key chemical constituents that are responsible for the possible skin and other undesirable health issues of Cassia oil are cinnamaldehyde, cinnamyl acetate, cinnamic acid and cinnamyl alcohol. These components have been studied for causing acute and subchronic toxicity.
Cassia oil may provoke debility, itching, irritation, insomnia, and depression in some people. This mainly occurs when the use of Cinnamaldehyde exceeds the maximum safe level of usage. The highest recommended level by the International Fragrance Association (IFRA) for Cinnamaldehyde is 0.05% for most leave-on products.
When used in vapor therapy and topical application beyond the recommended usage level, Ccnnamaldehyde, cinnamyl acetate, cinnamic acid and cinnamyl alcohol are said to contribute to the irritation of mucous membrane and are accounted for hepatotoxicity (toxic, irritant and might cause damage to the liver), mutagenic (alteration in the structure of DNA), reproductive toxicity (research supporting significant fall in the number of nuclei and changes in the allotment of embryos in pregnant mice) and restrain platelet aggregation, a vital part of the blotting clotting process.
Undiluted or concentrated Cassia oil have been shown to cause severe irritation in rabbits in certain studies and few other studies involving consecutive patients with dermatitis, few people were sensitive to 2% Cassia oil on patch testing.
Always ensure to dilute Cassia oil in appropriate carrier oils before topical use and never ingest essential oil as they may be toxic to the system.
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Ayurveda prescribes Cassia for the treatment of menstrual problems, nausea, respiratory infections, gastro-intestinal problems, depression, loss of libido, rheumatism, diabetes and indigestion. Cassia is botanically called as Cinnamomum cassia and is a member of the Lauraceae plant family.
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The International Fragrance Association (IFRA) recommends that Cinnamaldehyde (the chief constituent of Cinnamon Bark oil) be limited to 0.05% (about 1 drops per 3 ounces of any other carrier oils) for leave-on products like ointments, creams, and lotions. Since Cinnamon Bark oil is approximately 75% Cinnamaldehyde, the recommended maximum for Cinnamon Bark oil is 0.07% (approximately 1 drop in 2 ounces of any other carrier oils). There is no restriction for body washes, shampoos, soaps, and other wash-off products because the oil does not remain on the skin.
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Cinnamomum zeylanicum originates in Sri Lanka. It is a tropical evergreen tree of the laurel family growing up to 15 m (45 feet) in the wild. The tree has a very thin smooth bark, with a light yellowish brown color and a highly fragrant odor. Its pleasant scent makes it, in small amounts, a spicy addition to creams, lotions and soaps.
Although it is an indispensable spice and herbal remedy, Cinnamon is reported for negative effects including possible skin issues like allergic reactions, irritation of the skin, stimulating menstruation, contracting the uterine muscles, skin sensitization, dermatitis and burning sensation.
It is highly advisable to avoid Cinnamon oil during pregnancy as it may shrivel the uterine muscles, cause indigestion, pain in the abdomen, contribute to premature labor and is completely unsafe for the development of the fetus.
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The major chemical components that are in charge for the potential skin problems and other adverse health conditions of Cinnamon oil are Cinnamaldehyde, cinnamic acid and cinnamyl alcohol. It may cause a burning sensation or irritation on the engaged parts when used in the form of skin care, oral hygiene (toothpastes and mouthwashes) and pain relieving products including ointments and rubs.
Cinnamon oil, with the presence of these constituents is said to cause subchronic and severe toxicity, when used beyond the prescribed level of use. The maximum recommended usage level of Cinnamaldehyde by The International Fragrance Association (IFRA) is 0.05%.
Though Cinnamon has GRAS (Generally Regarded As Safe) status, The Council of Europe has fixed an ADI of 1.25mg/kg for Cinnamaldehyde, which is the same as an adult dosage of 115 mg of Cinnamon bark oil.
According to the Scientific Committee on Cosmetic Products and Non-Food Products (SCCNFP) the presence of Cinnamaldehyde in any ready to use products should not surpass 0.1%.
Essential oils are recommended only for dermal application and never ingest Cinnamon oil as it may cause toxic effects on the liver (hepatotoxic), kidney (nephrotoxicity) and the entire system. Diluted Cinnamon oil in appropriate carrier oils is prescribed safe and concentrated use may cause chronic allergies, irritation, dermatitis and chronic sensitization.
Studies report severe burns in people due to the skin contact of undiluted Cinnamon oil and is commonly related to burning sensation in the skin, mouth, mucous membrane stomach and chest , intermittent blistering, nausea, dizziness and sensitization accounted to the presence of Cinnamaldehyde. This also applies to the use of Cinnamon oil in vapor therapy and dermal application.
Always do a patch test before using Cinnamon oil on your skin.
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The traditional remedial properties of Cinnamon essential oil are antioxidant, astringent, antibacterial, antimicrobial, anti-clotting, anti-fungal, cardiac, emmenagogue, stimulant, analgesic, antibiotic, vermifuge, tonic, aphrodisiac, stomachic, diaphoretic, diuretic, anti-parasitic, alterative, expectorant, antispasmodic and carminative.
Thought for the day:
In wilderness I sense the miracle of life, and behind it our scientific accomplishments fade to trivia.-Charles Lindbergh
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