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.
Learn more about the Greener Life Diamond and the benefits of the Greener Life Club
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.
Reference Links Substantiating the Possible Skin Issues of Mustard Oil:
