Mustard oil, derived from the seeds of the mustard plant, has been a key ingredient in cooking for centuries. Known for its strong flavour, distinctive pungent aroma, and high smoke point, it is ideal for sautéing, stir-frying, and other high-heat cooking methods. Despite its culinary popularity, pure mustard oil is banned as a cooking oil in countries such as the United States, Canada, and much of Europe due to its erucic acid content. However, it continues to be widely used for topical purposes. Mustard essential oil , obtained through steam distillation of mustard seeds, is recognised as safe for use as a flavouring agent and is commonly incorporated into skincare routines, hair treatments, and massage oils for its potential health and beauty benefits.







Health benefits of using mustard oil

• Mustard oil may block microbial growth

Mustard essential oil contains natural antimicrobial compounds that may help inhibit the growth of harmful bacteria. Studies in laboratory settings have shown that white mustard essential oil can reduce the growth of bacteria such as Escherichia coli, Staphylococcus aureus, and Bacillus cereus. Further research comparing mustard essential oil with other essential oils like thyme and Mexican oregano found mustard oil to be particularly effective against pathogenic bacteria. It may also suppress the growth of fungi and mould, according to multiple laboratory studies.

• Mustard oil may promote skin and hair health

Topical application of pure mustard oil has long been used to improve hair and skin health. It can be added to homemade face masks, scalp treatments, or even mixed with wax for foot care to heal cracked heels. In countries like Bangladesh, oil massages for newborns using mustard oil are believed to strengthen the skin barrier. Anecdotal evidence also suggests benefits such as reduced fine lines, improved hair growth, and healthier skin.



Usage tip: Always perform a patch test on a small area of skin before applying mustard oil more broadly, as it can irritate some individuals.

• Mustard oil may alleviate pain

Mustard oil contains allyl isothiocyanate, a compound studied for its effect on pain receptors. Animal studies suggest that mustard oil may help desensitize pain receptors, potentially alleviating widespread pain. Additionally, mustard oil is rich in alpha-linolenic acid, an omega-3 fatty acid known to reduce inflammation. This could help relieve pain from conditions such as rheumatoid arthritis.



Caution: Prolonged topical exposure to pure mustard oil may cause skin burns. More human studies are needed to confirm pain-relieving effects.

• Mustard oil may slow cancer cell growth

Early research indicates that mustard oil may inhibit the growth of certain cancer cells. Animal studies show that feeding rats mustard oil slowed colon cancer progression compared to corn or fish oil. Mustard seed powder containing allyl isothiocyanate also reduced bladder cancer growth by nearly 35 percent and prevented tumour spread in the bladder wall. Laboratory studies support these findings, demonstrating that allyl isothiocyanate extracted from mustard oil can slow the spread of cancer cells.

• Mustard oil may support heart health

Mustard oil is high in monounsaturated fatty acids, which are associated with heart health. These fats may help lower triglycerides, blood pressure, and blood sugar levels, reducing risk factors for heart disease. Replacing saturated fats with monounsaturated fats may also reduce LDL cholesterol. However, evidence specifically linking mustard oil to improved heart health is mixed. Some studies suggest a higher risk of heart disease with increased mustard oil consumption, while others report lower risk compared with sunflower oil.

• Mustard oil reduces inflammation

Traditionally, mustard oil has been applied topically to relieve arthritis symptoms and decrease inflammation. Animal studies suggest that consuming mustard seeds can reduce inflammation caused by conditions such as psoriasis. Its high omega-3 fatty acid content, including alpha-linolenic acid, contributes to reducing oxidative stress and regulating inflammatory processes in the body.

• Mustard oil may help treat cold symptoms

Mustard oil is sometimes used as a natural remedy for colds, coughs, and congestion. It can be combined with camphor and applied to the chest or used in steam inhalation therapies. Currently, there is no scientific evidence confirming mustard oil’s effectiveness for respiratory conditions.





How to use mustard oil safely



Due to its erucic acid content, pure mustard oil is banned as a vegetable oil in the United States, Canada, and Europe. Mustard essential oil, produced via steam distillation, is considered safe for culinary use as a flavouring agent.



Both types of oil can be diluted with a carrier oil and applied topically for massage, hair, and skin treatments. Always perform a patch test and start with a small amount, such as one tablespoon, gradually increasing based on tolerance.







Disclaimer: Mustard oil and mustard essential oil are for informational purposes only. Consult a healthcare professional before use, and perform a patch test for topical applications. Pure mustard oil is not approved for cooking in some countries.










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