How to Use Argan Oil for Frizzy Hair

Most argan oil goes on at the wrong moment. Poured onto dry hair at lunchtime, it sits on the surface and reads as grease. Worked through the roots, it flattens everything by 3 pm. The oil is rarely the problem.

Argan oil earns its reputation within a narrow window: damp hair, mid-lengths and ends, straight after conditioner and before heat. Get the window right and the bottle that disappointed you last month starts behaving like the one in the salon.

Here is the method, the dose, and the three mistakes that undo it.

Why does argan oil work on frizzy hair?

Argan oil reduces frizz by smoothing the cuticle so the hair fibre takes on less water from the air. It contains roughly 43 to 49 per cent oleic acid and 29 to 36 per cent linoleic acid, plus tocopherols. Those lipids lie down over raised cuticle scales, which are the surface that decides how fast humidity gets in.

Frizz is a water problem before it is a texture problem. Research published in Cosmetics & Toiletries in 2025 found that porous hair absorbs and releases water faster, and that this rapid water movement rearranges the hydrogen bonds holding the fibre in alignment. The strand swells, the scales lift, neighbouring strands stop lying flat, and you get frizz.

Porosity is what varies. Bleaching, box dye, flat irons and hard water all strip the hydrophobic outer layer and leave the cuticle open. That is why two people can stand in the same Durban humidity, and only one of them has frizzy hair.

Argan oil intervenes at that surface. A 2024 study in Cosmetics tracked coconut, avocado and argan oils into the hair fibre and found all three reached the cortical region, with the penetration profile shifting depending on how damaged the hair was. So the oil does more than coat, but the frizz benefit you can see in a mirror is mostly a cuticle effect.

Argan oil seals. It does not hydrate. Applied to bone-dry hair, there is no water underneath for it to hold in, which is exactly why the mid-afternoon top-up feels greasy and changes nothing.

How to use argan oil for frizzy hair, step by step

Apply argan oil to damp, towel-dried hair, not dripping. Warm two to six drops between your palms, press them through the mid-lengths and ends, then distribute with a wide-tooth comb. Style as usual. Once the hair is fully dry, smooth half a drop over the surface to settle flyaways; keep all of it off the scalp.

That is the whole procedure. The detail that decides whether it works is in the next two sections.

How much argan oil should you use?

Two to six drops for most people, measured before you touch your hair rather than adjusted halfway through. A drop from a standard dispenser is about 0.05 ml, so five drops is a quarter of a millilitre. That is a small amount of product, and a 100 ml bottle carries hundreds of applications, which means erring low costs you nothing and erring high costs you the whole wash.

Fine hair sits at the top of that table for a reason that has nothing to do with length. Fine strands have more surface area per gram, so the same three drops that vanish into thick hair will visibly weigh down a fine head. If you have fine hair and frizz, run two drops for a fortnight before you consider more.

Why damp hair, and not wet or dry

Wet hair is already saturated, so the oil beads and rinses away with the water, still leaving the strand. Dry hair has nothing to seal. Damp hair, the stage where a towel has taken the drip out but the hair still feels cool, is the only point where the oil spreads thinly and traps the water that is already inside the cuticle.

Practically, that means applying within a minute or two of towelling. If your hair has been sitting in a towel turban for 20 minutes, it has usually passed the window, and a quick mist of water will bring it back.

Heat goes on after the oil, never before. The Muk Spa Argan Oil Repair Treatment is formulated to protect the hair through blow-drying and irons, and the tocopherols in argan oil are there to take the oxidative hit. On anything above a warm blow-dry, layer a dedicated heat protectant over the top rather than relying on oil alone.

Argan oil for curly, frizzy hair

Argan oil for curly, frizzy hair goes on wetter and heavier than it does on straight hair. Apply to soaking wet curls after conditioner, using flat palms to coat each section, then scrunch upward toward the scalp. Do not comb afterwards. Air dry or diffuse on low heat, and leave the curls alone until they are completely dry.

The change in method matters more than the change in dose. Curls hold their shape from a cast that forms as the section dries in one piece, and combing or touching a half-dry curl breaks that cast into frizz. Straight hair wants the oil distributed evenly. Curly hair wants it locked into a clump.

Day two is where most curly routines fall over. Rather than adding more oil to dry hair, wet your palms, press the water in first, then add a single drop. The water reactivates what is already on the strand.

For a fuller curl-specific routine, our guide on how to enhance your natural curls covers the wash-and-diffuse sequence in detail, and the Kinky Muk curl range is built around the same principle.

Where the shampoo step fits

An argan oil shampoo for frizzy hair does a different job from the oil, and it is the one people skip. Frizz control fails at the wash, not the finish. A stripping sulphate cleanser lifts the cuticle every time you use it, which raises porosity, which is the thing that lets humidity in.

Swapping to a gentler cleanser is a slower fix than a drop of oil and a bigger one. The Muk Spa Argan Oil Repair Shampoo and its matching conditioner are built to clean without that trade-off, and our piece on why sulphate is bad for your hair explains what the harsher surfactants are actually doing.

For argan oil for dry, frizzy hair, add a weekly mask on top. The Muk Spa Argan Oil Repair Mask delivers a longer contact time than a rinse-out conditioner manages, and dry frizz responds to contact time more than it responds to product volume. Highveld winter is the season to start, when the air itself is pulling moisture out of the strand.

Five things that stop argan oil working

Argan oil for frizzy hair fails in five predictable ways, and four of them are about placement rather than product.

1. Oil at the roots. The scalp makes its own sebum. Adding oil there buys flat, greasy roots and does nothing for the ends, where frizz actually lives.
   
   
2. Applying to dry hair as a first pass. The dry top-up is a finishing step of half a drop. It is not a substitute for the damp application.
   
   
3. Too much, too often. Weighed-down hair looks like greasy hair and gets treated with more shampoo, which raises porosity and restarts the cycle.
   
   
4. Using it instead of conditioner. Oil seals. Conditioner deposits. Cutting the conditioner removes what the oil was supposed to be holding in.
   
   
5. Never clarifying. Oils and silicones build up over six to eight weeks and start blocking absorption. A periodic hair reset for product build-up restores it.

Start here

Run the damp-hair application at the dose in the table for two weeks, without adding a mid-day top-up, and note whether your hair holds its shape past midday. If it does, you had a timing problem. If it doesn't, your frizz is porosity-driven and the fix is upstream: gentler cleansing, a weekly mask, less heat. Either way, you will know within a fortnight which one you're dealing with, and that is the answer that actually changes what you buy next.

Browse the full argan oil range or the wider frizz control collection to build the routine around it.