Argan Oil for Hair: Traditional Use and What Research Says

Updated

6 min read

Applying argan oil to the ends of long dark hair
Illustration

Short answer

People traditionally use a few drops of cosmetic argan oil on the lengths and ends of dry hair as a conditioning oil. Research on argan oil for hair is limited, so treat it as a personal care habit and not as a treatment. Use a small amount, do a patch test first, and speak with a professional about scalp or hair loss problems.

Table of contents
  1. What people mean by argan oil for hair
  2. What research says
  3. How to use it
  4. How much is enough
  5. For different hair types
  6. Safety and patch test
  7. What argan oil will not do
  8. Culinary or cosmetic for hair
  9. Ideas by hair type
  10. Using argan oil with other products
  11. Mistakes that leave hair greasy
  12. When to speak to a professional
  13. Reading hair product labels
  14. Frequently asked questions

Argan oil is one of the best known Moroccan beauty products, and hair care is where many people meet it first. This guide explains how people use it, how to apply it safely and what we can say about the research.

What people mean by argan oil for hair

In Morocco, and now in many other places, people apply a little argan oil to hair to make it feel softer and look shinier. The oil sits on the hair and helps reduce friction and moisture loss, as many plant oils do. This describes a common use. It is not a promise of results, and results vary with hair type and with the amount you use.

What research says

Research on argan oil covers its chemistry, its use in cooking and some skin studies. Studies on hair are far fewer, and many are small or have limits. In a 2012 commentary, dermatologist Naissan Wesley wrote that the use of argan oil for hair had not been documented in peer-reviewed literature, and described only anecdotal benefits such as less frizz and more shine on curly hair. In a 2024 commentary, a physician wrote that claims about dandruff lack rigorous evidence. We found no recent systematic review. Until you have added those sources, keep this article to traditional use and practical tips.

How to use it

As a finishing oil

  1. Start with two or three drops on clean, damp or dry hair.
  2. Warm the oil between your palms.
  3. Smooth it over the lengths and ends, avoiding the roots.
  4. Add a drop or two only if the hair still feels dry.

As a pre wash treatment

  1. Warm a teaspoon of cosmetic argan oil in your hands.
  2. Work it through the mid lengths and ends.
  3. Leave it for 20 to 30 minutes under a warm towel.
  4. Shampoo twice to remove it, and rinse well.

A full hair mask recipe is in this collection.

How much is enough

Less than you think. Fine hair can look greasy after a few drops too many. Thick, coarse or curly hair usually takes more. Begin small and adjust.

For different hair types

Fine or straight hair needs one or two drops on the ends only. Wavy or curly hair often takes a little more, worked into damp hair. Very dry or coarse hair may take a pre wash treatment once a week. These are common practice, not medical advice.

Safety and patch test

Test a small amount on the inner arm and wait 24 hours before you use it on your scalp or hair. Stop if you notice redness, itching or swelling. If you have a nut allergy, ask your doctor first. Keep oil away from your eyes.

What argan oil will not do

Argan oil is not a treatment for hair loss, dandruff or scalp conditions. If you have thinning hair, an itchy or flaking scalp or sudden changes, speak with a doctor or a dermatologist.

Culinary or cosmetic for hair

Use cosmetic argan oil. Culinary oil has a strong roasted smell that many people dislike on hair, and it is not made for that use. See the pillar guide for the difference.

Ideas by hair type

Hair typeHow people often use argan oilAmount to try
Fine or straightOn the ends only, after washingOne or two drops
WavyThrough damp lengthsTwo or three drops
Curly or coilyOn damp hair, sealing in moistureThree to five drops
Thick or coarseAs a weekly pre wash treatmentAbout a teaspoon
Oily scalpOnly on the very endsOne or two drops

These are common habits, not medical advice. Your hair may need less or more.

Using argan oil with other products

Many people apply a leave in conditioner or a light cream first, then a drop of oil on top, on the theory that oil helps seal moisture in. Others use only the oil. Try one change at a time so you can tell what works for you. Avoid mixing oil with products that you do not know well.

Mistakes that leave hair greasy

  1. Using too much oil, especially on fine hair.
  2. Applying oil to the roots.
  3. Not rinsing thoroughly after a pre wash treatment.
  4. Layering several oils at once.

When to speak to a professional

If you notice sudden hair loss, a very itchy or flaking scalp, pain, redness or sores, speak with a doctor or a dermatologist. Argan oil is a cosmetic and it is not a substitute for medical care.

Reading hair product labels

If a hair product claims to contain argan oil, look at where it appears in the ingredients list. Ingredients are listed from the most to the least. A product with argan oil near the end contains very little. This does not make the product bad, but it does mean the name on the front may promise more than the label delivers.

Frequently asked questions

Can I leave argan oil in overnight?

Some people do, on the ends only. Use a very small amount and protect your pillow, since oil stains fabric. Skip the roots.

How often should I use it?

There is no rule. Many people use a few drops after washing, and a treatment once a week or less.

Will it work for everyone?

Hair varies, and so do products. Try it for a few weeks, notice how it feels and stop if it does not suit you.

Applying argan oil to the ends of long dark hair
Illustration