Benefits of Argan Oil for Skin and Hair | What Science Says

Argan oil moisturizes skin, supports the skin barrier, and conditions hair, though evidence for hair growth is weak.

Pressed from the kernels of Moroccan argan trees, this lightweight oil is rich in oleic and linoleic fatty acids plus vitamin E — the compounds behind its moisturizing and antioxidant effects. The strongest science backs it for dry skin, brittle hair, and barrier support, while popular claims about hair growth and scar fading outrun the evidence. Here’s what actually holds up, what doesn’t, and how to use it without the guesswork.

What Does Argan Oil Do For Skin?

The best-documented skin benefit is barrier support. Cleveland Clinic notes research shows argan oil protects the skin’s barrier and improves overall texture. That barrier is your skin’s first line of defense — when it’s intact, moisture stays in and irritants stay out.

Topical argan oil also improves hydration and elasticity. One clinical study found that postmenopausal women who used argan oil topically or orally for 60 days saw measurable gains in skin elasticity. Review-level evidence in the PMC literature supports its hydrating and anti-inflammatory activity, which is why it shows up in formulations for eczema and acne-prone skin — but those are supportive findings, not treatment guidelines.

For fine lines and stretch marks, the mechanism is indirect: well-hydrated skin looks plumper and more supple, which can soften the appearance of surface lines.

How Argan Oil Helps Hair

Argan oil’s hair benefits are conditioning, not regrowth. Used as a leave-in treatment, it reduces frizz, adds shine, and helps prevent split ends by coating the hair shaft with a protective layer of fatty acids. That same coating makes it a decent heat protectant — a light layer before blow-drying or styling can shield strands from some heat-related damage.

The hair growth claim is where the evidence falls apart. A 2022 review indexed on PubMed found no strong evidence that argan oil promotes hair growth or treats scalp conditions like infestation. A separate 2022 review from Hims reaches the same conclusion: no scientific studies show argan oil treats hair loss.

On fine or oily hair, use it sparingly. A drop or two worked through the ends is enough; applying it to the scalp can leave hair looking greasy rather than glossy.

Who Should Use Argan Oil?

Argan oil suits most skin and hair types, with a few caveats. It’s especially useful for:

• Dry or damaged hair — the fatty-acid coating reduces frizz and breakage
• Dry or flaky skin — lightweight hydration without a heavy feel
• Oily or acne-prone skin — it’s non-comedogenic for many people, though individual tolerance varies
• Sensitive or eczema-prone skin — review-level evidence supports soothing effects, but it’s not a treatment

Because it’s an oil, some users find it too heavy. Fine hair can look weighed down, and very oily skin may not tolerate it. Test a small patch first, and start with a single drop.

If you’re comparing specific products for your hair or skin type, our tested roundup of the best argan oils breaks down the options that performed well in real use.

How Do You Use Argan Oil?

No standardized protocol exists — consumer and medical sources describe the same simple approach. For skin, warm a few drops between your palms and press onto damp skin after cleansing, focusing on dry areas. For hair, work one or two drops through the ends while hair is damp, then style as usual. For a deeper treatment, apply more generously, leave for 20–30 minutes, and rinse.