Ask anyone who grew up in an Indian home about mustard oil, and you will hear a story. Maybe it was the small steel bowl warming on the stove. Maybe it was the sharp smell that filled the room on a winter Sunday. Mustard oil, or sarson ka tel, has been part of hair care in many Indian families for generations.
But it is also the oil people argue about the most. Some love it. Some find it too strong, too sticky, or too smelly. So let’s talk about it plainly: what mustard oil is, why it is used for hair in Ayurveda, how to use it well, and who should be a little careful.
What makes mustard oil different
Mustard oil is pressed from mustard seeds. The cold-pressed kind, often called kachi ghani, is the one most families use for hair. It is thick, golden and has that strong, sharp smell you can’t miss.
In Ayurveda, mustard oil is thought of as a warming oil. That is a big part of why it is loved in the cold months. A warm mustard oil massage on a chilly morning just feels right to a lot of people. Coconut oil, on the other hand, is seen as cooling. That’s why many traditional hair oils mix the two.
Mustard oil is also heavier than many other oils. It sits on the hair and scalp for a while instead of disappearing quickly. That can be a good thing or a bad thing, depending on your hair.
Why mustard oil is used for hair
Here is why people keep coming back to it:
- It helps dry hair feel softer. Because it is thick, it coats the hair well. Rough, dry ends often feel smoother after an oiling.
- It makes the massage feel warm and relaxing. The warming feel is the main reason many people pick it in winter.
- It is a good base for herbs. In Ayurveda, herbs are often slowly cooked into an oil so the oil carries them. Mustard oil has been used as a base this way for a long time.
- It is easy to find. Most kitchens in India already have a bottle.
That said, mustard oil is not magic. It is a traditional oil that helps hair feel nourished and cared for. That’s it. If anyone tells you a single oil will fix every hair problem, be careful.
How to use mustard oil on your hair, step by step
The way you use it matters more than the oil itself. Here is a simple routine.
1. Do a patch test first
Mustard oil can feel strong on the skin. Put a little on the inside of your arm or behind your ear. Wait a day. If you see redness, itching or burning, don’t use it on your scalp.
2. Warm it gently
Put two or three spoons of oil in a small bowl. Place that bowl in a larger bowl of hot water for a few minutes. You want the oil warm, not hot. Test it on your wrist before it goes on your head.
3. Part your hair and apply
Part your hair into sections. Use your fingertips to put the oil on your scalp, a little at a time. You don’t need a lot. A thin layer is enough.
4. Massage slowly
Use the pads of your fingers, not your nails. Move in small, slow circles. Start at the front, then the sides, then the back. Five to ten minutes is plenty. This slow head massage is called champi in many homes. Keep it gentle. Rubbing hard or pulling the hair does more harm than good.
5. Run the rest through your lengths
Whatever is left on your hands, smooth it down your hair, especially the ends.
6. Leave it on for a while
One to two hours is a good amount of time for most people. Some leave it overnight. If you do, cover your pillow with an old towel. If you have an oily scalp, a shorter time is usually better.
7. Wash it out well
Mustard oil is thick, so it takes a proper wash. Use a mild cleanser and lukewarm water, not hot. You may need to wash twice. If you want a full guide on timing, our post on hair oiling the Ayurvedic way goes into how long to leave oil on and how often to oil.
Plain mustard oil or a blended herbal oil?
Plain mustard oil works for a lot of people. But many find it too heavy or too strong on its own. That’s why traditional hair oils often blend it with lighter oils and cook herbs into it.
Our Keshya Rasayana Tailam is made this way. It uses a mustard oil and coconut oil base, with herbs like Bhringraj, Amla, Brahmi and Methi seed slowly cooked in. The coconut oil softens the heaviness of mustard oil, and the herbs bring what Ayurveda has traditionally valued them for. If you want to know more about any of these herbs, our ingredients page explains each one, and there is a whole post on Bhringraj, the “king of hair”.
To wash a thick oil out without stripping your hair, a gentle cleanser helps. The Keshya Rasayana Hair Ritual Wash is made for exactly this step.
Mustard oil and your dosha
Ayurveda looks at each person a little differently. Here is a rough guide:
- Vata (dry, frizzy hair, dry scalp): Warming oils like mustard oil are often a good match, especially in winter.
- Kapha (thick hair, oily scalp): A small amount, used less often, with a shorter time before washing.
- Pitta (scalp that feels hot, gets red or sensitive easily): Plain mustard oil may feel too warming. A blend with coconut oil, or a cooling oil, may suit you better.
Not sure which one you are? Take our short dosha quiz. It only takes a few minutes.
Common mistakes to avoid
- Using it too hot. Hot oil can burn your scalp. Warm is enough.
- Using too much. More oil does not mean better results. It just means more washing.
- Skipping the patch test. Mustard oil can irritate some skin. Always test first.
- Massaging too hard. Rough rubbing can tangle and break hair. Go slow and soft.
- Leaving it on for days. Oil left on too long can collect dust and sweat. Wash it out the same day or the next morning.
- Washing with very hot water. It can leave your scalp dry. Lukewarm water works better.
- Buying refined or mixed oil. For hair, look for pure, cold-pressed mustard oil from a brand you trust.
Who should be careful
Mustard oil is not for everyone. Take care, or skip it, if:
- You have sensitive skin or have reacted to mustard oil before.
- Your scalp has cuts, sores, a rash or is already irritated.
- You have a very oily scalp that gets heavy easily.
- You are looking for something to treat a scalp or hair condition.
Please keep this in mind: if you are losing a lot of hair, or you have itching, flaking, pain or any scalp problem that does not go away, see a doctor or dermatologist. Hair oiling is a care habit, not a treatment.
A small ritual, not a chore
The best part of a mustard oil champi is not the oil alone. It is the slow ten minutes you give yourself. Warm oil, soft hands, no rushing. Do it once or twice a week, notice how your hair feels, and adjust. If you want a full routine from oil to wash, our Radhvé ritual walks you through it.
Quick answers
Can I leave mustard oil in my hair overnight?
Yes, many people do. Just cover your pillow, and wash it out properly the next morning. If your scalp gets oily fast or feels itchy, keep it to one or two hours instead.
How often should I use mustard oil on my hair?
Once or twice a week is enough for most people. Dry hair may like it a bit more often. Oily scalps usually do better with less.
Can I mix mustard oil with coconut oil?
Yes. This is a very common mix. Coconut oil makes it lighter and less sharp. Many traditional hair oils, including ours, use both together.
Is mustard oil good for hair in summer?
In Ayurveda, mustard oil is thought of as warming, so many people use it more in winter. In hot months, a lighter blend with coconut oil, or a shorter time before washing, may feel better.
How do I get the smell of mustard oil out of my hair?
Wash with a mild cleanser and lukewarm water, twice if needed. A blended oil, where mustard oil is mixed with other oils and herbs, usually has a softer smell than plain mustard oil.