Most people who practice Ayurveda at home buy sesame oil from the nearest supermarket. It says sesame oil on the label. They assume it is the same oil the classical texts refer to.
It is not.
The Charaka Samhita, one of the two foundational texts of Ayurvedic medicine, specifies til taila (sesame oil) for some of the most important practices in daily Ayurvedic routine. What it specifies is unrefined, cold pressed sesame oil. The refined version available in most Indian supermarkets is a chemically processed product that shares a name with the classical ingredient but not its therapeutic properties.
This article explains what the classical texts actually say, why the distinction between refined and unrefined sesame oil matters for therapeutic practice, and what to look for when buying sesame oil for Ayurvedic use.
What the Charaka Samhita Says About Sesame Oil
The Charaka Samhita is a Sanskrit text compiled over several centuries, codified around the second century CE, and considered the primary reference for classical Ayurvedic internal medicine. It is explicit about which oils are appropriate for which therapeutic applications.
Sesame oil (til taila) is classified in the Charaka Samhita as the best among all oils for therapeutic use. The Sanskrit phrase used is "tailenam seshamam shresthham" which translates as sesame oil is the best of all oils.
The text specifies sesame oil for three primary daily practices:
Abhyanga is the daily full-body self-massage that forms a central part of the Dinacharya, the daily routine prescribed in classical Ayurveda for health maintenance. The Charaka Samhita recommends Abhyanga for improving skin quality, supporting joint health, calming the nervous system, promoting sound sleep, and balancing Vata dosha.
Gandusha and Kavala are the Ayurvedic oil pulling practices. Gandusha involves holding oil in the mouth without movement. Kavala involves gently swishing oil in the mouth. Both are specified for oral health, strengthening the teeth and gums, improving voice quality, and removing toxins from the oral cavity.
Nasya is the practice of administering oil through the nasal passages. The Charaka Samhita specifies it for clearing the head, improving clarity of sense organs, and supporting respiratory health.
In each of these practices, the text specifies sesame oil. Not a category of oils. Sesame oil specifically.
Why Sesame Oil Specifically
The Charaka Samhita's preference for sesame oil over other oils is not arbitrary. Classical Ayurvedic texts describe several qualities of sesame oil that make it therapeutically superior.
Sukshma: Fine or penetrating quality. Sesame oil is described as being capable of penetrating deeply into the dhatus, the body's tissues, more effectively than other oils. Modern dermatological research confirms that sesame oil has one of the lowest molecular weights among common plant oils, which supports this classical observation.
Yogavahi: The quality of carrying and enhancing the properties of other substances it is combined with. Sesame oil was traditionally used as the base for medicated oils in classical Ayurveda precisely because of this property.
Ushna: Warming quality. Sesame oil is considered warming in its energetic nature, which is why it is particularly specified for Vata conditions and cold climate use.
Snigdha: Unctuous or oily quality that provides nourishment and lubrication to tissues.
These properties are described consistently across the Charaka Samhita, the Ashtanga Hridayam (the second foundational Ayurvedic text), and the Sushruta Samhita.
The Compound That Explains the Classical Preference
Modern food science has identified what the classical texts were observing through a different lens.
Sesame oil is the only common cooking oil that contains Sesamin and Sesamolin, two lignans that are unique to sesame and found in no other common plant oil at meaningful concentrations.
Sesamolin converts to Sesamol when sesame oil is heated or exposed to light. Sesamol is one of the most powerful natural antioxidants identified in food research. It actively inhibits lipid peroxidation, protects the oil from oxidative damage, and has been studied for anti-inflammatory, antibacterial, and neuroprotective properties.
The combination of Sesamin and Sesamol gives cold pressed sesame oil properties that no other plant oil possesses. It is almost certainly why classical Ayurvedic physicians selected sesame oil above all others for therapeutic use after centuries of empirical observation.
What Refining Does to These Compounds
This is the critical point that most buyers miss.
Refined sesame oil goes through the same industrial process as refined groundnut or sunflower oil: hexane solvent extraction, degumming, neutralisation, bleaching, and deodorisation at 200 to 270 degrees Celsius.
Sesamin and Sesamolin are heat-sensitive compounds. Industrial bleaching and deodorisation significantly deplete both. Refined sesame oil contains a fraction of the Sesamin and Sesamolin content of cold pressed sesame oil.
What this means for Ayurvedic practice is direct: the therapeutic properties that classical texts attribute to sesame oil are properties of unrefined sesame oil. Refined sesame oil with depleted Sesamin and Sesamolin content is not the same therapeutic substance.
This is not a claim made by a cold pressed oil brand. It is a straightforward consequence of what the refining process removes.
The Abhyanga Application
Abhyanga is the practice most families are familiar with. The Charaka Samhita's instruction is to apply warm sesame oil to the entire body before bathing, using long strokes on the limbs and circular strokes on the joints.
The classical texts specify that the oil should penetrate the skin and be absorbed into the tissues rather than sitting on the surface. This is where the Sukshma quality of sesame oil becomes practically relevant.
Cold pressed sesame oil's low molecular weight supports deep skin penetration. The naturally occurring Sesamin and Sesamolin are delivered into the tissue rather than remaining on the skin surface.
Refined sesame oil, with its Sesamin and Sesamolin content significantly reduced, has less to deliver even if the penetration depth is similar.
How to prepare sesame oil for Abhyanga:
Warm the oil gently before use. Place the bottle in a bowl of warm water for five minutes. The oil should reach approximately body temperature, around 37 degrees Celsius. It should feel comfortably warm on the inner wrist, not hot.
Apply to dry skin before bathing. Work from the scalp downward. Use long strokes on the arms and legs, circular strokes on the joints. Allow five to ten minutes of absorption before bathing with warm (not hot) water.
Use cold pressed sesame oil for this practice. The classical texts did not specify refined sesame oil because refined sesame oil did not exist when they were written. Given what we now know about what refining removes, the specification of unrefined is implied by the therapeutic function the practice is designed to serve.
The Gandusha and Kavala Application
Oil pulling has received significant attention in popular wellness media. The classical practice is somewhat different from how it is often described.
Gandusha involves filling the mouth with sesame oil and holding it without movement for several minutes. Kavala involves gently swishing a smaller quantity.
The Charaka Samhita specifies these practices for oral health, specifically for strengthening the teeth and gums, preventing and treating dental sensitivity, improving voice quality, and reducing oral bacteria.
Modern research on oil pulling has produced mixed results, partly because most studies use refined sesame or coconut oil rather than the unrefined sesame oil specified in classical practice.
Sesamol, present in meaningful quantities in cold pressed sesame oil, has documented antibacterial properties. It is plausible that part of the classical practice's effectiveness depends on the presence of Sesamol in unrefined oil.
How to practice Gandusha:
Use one tablespoon of cold pressed sesame oil at room temperature. Hold in the mouth for five to twenty minutes on an empty stomach, ideally in the morning before eating or drinking. Spit into a bin rather than the sink afterward. Do not swallow.
The Nasya Application
Nasya involves applying a small quantity of oil into the nasal passages, typically using the little finger or a dropper. The Charaka Samhita specifies it for clearing the nasal passages, improving clarity of thought, supporting the sense organs, and treating Vata imbalances in the head region.
For Nasya, only a very small quantity of oil is used. The Sukshma (penetrating) quality of sesame oil is particularly relevant here because the nasal mucosa is a delicate tissue and the oil must be light enough to not feel heavy or uncomfortable.
Cold pressed sesame oil is appropriate for this practice. If you practice Nasya for therapeutic reasons, consult an Ayurvedic practitioner for personalised guidance on quantity and timing.
How to Choose the Right Sesame Oil for Ayurvedic Practice
The market for sesame oil in India is large and the labelling is inconsistent. Several things to look for when buying sesame oil for Ayurvedic use:
The smell test is the simplest. Cold pressed sesame oil has a deep, warm, toasty aroma. If the sesame oil you are considering has almost no smell, it has been deodorised and the aromatic compounds along with the Sesamin and Sesamolin have been significantly depleted.
Look for cold pressed or wood pressed on the label, not simply sesame oil or pure sesame oil. Pure refers to the absence of blending, not the extraction method.
Look for independent lab testing. Sesamin content varies by harvest and pressing method. A brand that publishes lab results per batch can tell you the actual Sesamin content of the specific oil you are buying. A brand that does not cannot.
Expect natural colour variation. Cold pressed sesame oil ranges from pale golden to deeper amber depending on the seed variety and harvest conditions. Uniform pale colour in sesame oil usually indicates bleaching.
The Honest Summary
The Charaka Samhita specified sesame oil for Abhyanga, Gandusha, and Nasya because sesame oil has unique therapeutic properties that no other common oil possesses. Those properties are concentrated in Sesamin, Sesamolin, and Sesamol, compounds that survive cold pressing and are significantly depleted by industrial refining.
Practicing Ayurvedic daily routines with refined sesame oil is not the same as practicing them with the oil the classical texts specified. The therapeutic substance and the supermarket product share a name but not their therapeutic composition.
This distinction matters more in Ayurvedic practice than in everyday cooking because Ayurvedic practices are specifically designed around the therapeutic properties of the ingredients they specify.
Use cold pressed sesame oil for Ayurvedic practice. It is what the tradition was built on.