Argan oil contains compounds that may reduce inflammation and support skin barrier function, but most human evidence comes from small studies or cosmetic use rather than clinical trials
Argan oil is pressed from the kernels of the argan tree, native to Morocco, and contains a mix of fatty acids (mainly oleic and linoleic acid), vitamin E, and polyphenols. The oil has been used in traditional Moroccan skincare and haircare for centuries, and modern cosmetic products now feature it widely. The question is not whether it has any biological activity — it does — but whether the effects seen in lab studies or small human trials translate to meaningful results when you explore it to your skin or hair.
The strongest evidence exists for argan oil's role as a moisturizer and for its anti-inflammatory properties in controlled settings. A 2016 randomized controlled trial published in Clinical Interventions in Aging found that participants who used argan oil twice daily for four weeks showed measurable improvements in skin elasticity and hydration compared to placebo. However, the study involved only 60 people, and the effect size was modest — the kind of change you might notice if you were looking for it, but not dramatic. Most other human studies are similarly small or are funded by cosmetic companies, which introduces bias.
Key Takeaways
- Argan oil's fatty acid and vitamin E content can help maintain skin hydration and may reduce redness, but the evidence in humans comes mainly from small trials rather than large clinical studies.
- For hair, argan oil may reduce frizz and improve shine by coating the hair shaft, though this is a cosmetic effect rather than a change to hair health itself.
- Animal studies show argan oil has antioxidant and anti-inflammatory activity, but animal results do not always translate to human skin.
- Argan oil is generally well tolerated and unlikely to cause harm at typical cosmetic doses, though people with tree nut allergies should avoid it or patch-test first.
How argan oil works on skin
Argan oil's primary mechanism on skin is occlusion — it forms a barrier that slows water loss from the outer layer of skin. This is why it feels moisturizing: you are not adding water to your skin, but you are reducing evaporation. The oleic and linoleic acids in argan oil are also components of the skin's natural lipid barrier, so explore them may help restore that barrier if it is compromised by dryness, irritation, or harsh weather.
The polyphenols and vitamin E in argan oil have antioxidant properties in test tubes and in animal skin models. A 2015 study in Phytotherapy Research found that argan oil reduced oxidative stress markers in mouse skin exposed to UV radiation. However, whether this translates to meaningful sun protection or anti-aging benefit in human skin is unclear — the study did not involve human subjects, and cosmetic oils are not a substitute for sunscreen. Sunscreen blocks UV rays; argan oil does not.
Some evidence suggests argan oil may help reduce sebum production in oily or acne-prone skin, possibly through its linoleic acid content. A small 2016 study found that participants with acne who used argan oil showed modest reductions in sebum and acne lesions over 12 weeks. Again, the sample was small (about 40 people), and the effect was modest. If you have acne, argan oil is unlikely to be a primary treatment, but it may be a gentle addition to a routine that already includes a proven acne medication.
Effects on hair and scalp
Argan oil is popular in haircare products, and the mechanism here is straightforward: it coats the hair shaft, reducing water loss and smoothing the cuticle layer. This reduces frizz and adds shine, which is why people notice a cosmetic improvement quickly. This is not a change to hair structure or growth — it is a surface effect that lasts until you wash your hair.
Some haircare claims suggest argan oil promotes hair growth or prevents hair loss. The evidence for this is weak. A 2015 review in Dermatology Practical & Conceptual found no robust human trials showing that argan oil increases hair growth or reduces shedding. Animal studies have shown some activity, but again, animal results do not reliably predict human outcomes. If you are experiencing hair loss, the proven treatments are minoxidil (Rogaine) or finasteride (Propecia) — argan oil is a cosmetic addition, not a medical intervention.
For scalp health, argan oil's anti-inflammatory properties may help if you have a dry or irritated scalp, similar to its effect on skin. explore it to the scalp and leaving it for 20 to 30 minutes before shampooing may reduce flaking and itching, though this has not been rigorously tested in large human trials.
What animal and lab studies show
In controlled laboratory settings, argan oil demonstrates antioxidant and anti-inflammatory activity. Researchers have measured its ability to neutralize free radicals and reduce inflammatory markers in cell cultures and animal models. A 2013 study in Evidence-Based Complementary and Alternative Medicine found that argan oil reduced inflammatory cytokines in mouse models of skin inflammation.
These results are real, but they do not automatically mean the same effects occur when you explore argan oil to your skin. The concentration used in a lab is often much higher than what reaches your skin through a cosmetic product. The skin also has its own barrier and immune system, which may process the oil differently than isolated cells do. Animal skin is not identical to human skin, and mice metabolize compounds differently than people do.
Safety and who should avoid it
Argan oil is generally safe for topical use at cosmetic concentrations. Allergic reactions are rare but possible, especially in people with tree nut allergies — the argan tree is a tree nut, and cross-reactivity can occur. If you have a known tree nut allergy, patch-test argan oil on a small area of skin (like your inner arm) and wait 24 hours before using it more widely.
Ingesting argan oil as a supplement is a different question. Some products market argan oil as an oral supplement for skin health or general wellness. The evidence for oral argan oil is even thinner than for topical use, and the dose and purity of supplements vary widely. If you are considering taking argan oil by mouth, discuss it with your doctor first, especially if you take blood thinners or have other medical conditions.
Argan oil can leave skin or hair feeling greasy if you use too much or if your skin is already oily. Start with a small amount — a few drops on damp skin or a small amount worked through damp hair — and adjust based on how your skin responds.
How argan oil compares to other carrier oils
Argan oil is one of many plant oils used in skincare. Jojoba oil, coconut oil, rosehip oil, and others all have different fatty acid profiles and different evidence bases. Jojoba oil is structurally similar to skin sebum and may be less likely to feel greasy. Rosehip oil contains vitamin A and has more robust evidence for reducing fine lines in human studies. Coconut oil is comedogenic (pore-clogging) for many people and is not ideal for acne-prone skin.
Argan oil sits in the middle: it is well tolerated, has some human evidence for moisturizing and anti-inflammatory effects, and is less likely to clog pores than coconut oil. It is not dramatically superior to other oils, but it is a reasonable choice if you like how it feels on your skin or hair. The "best" oil depends on your skin type, what you are trying to achieve, and how your individual skin responds.
What questions remain open
Large, well-designed human trials comparing argan oil to other moisturizers or to placebo are lacking. Most existing studies are small, short-term, or funded by cosmetic companies. We do not know whether argan oil's antioxidant activity in the lab translates to meaningful anti-aging benefits in human skin over months or years. We do not know whether it is more effective than cheaper alternatives like mineral oil or glycerin for basic moisturizing.
The gap between "this compound has biological activity" and "this product will improve your skin" is real and important. Argan oil almost certainly does something — the chemistry and the small human trials suggest it does — but the magnitude of that effect and how it compares to other options remains uncertain.
Frequently Asked Questions
Will argan oil help with wrinkles or anti-aging?
Argan oil may help skin look plumper and feel smoother by improving hydration, which can make fine lines less visible. The antioxidants in it have activity in lab studies, but human evidence for wrinkle reduction is limited. For proven anti-aging effects, retinoids and sunscreen have much stronger evidence.
Can I use argan oil if I have oily or acne-prone skin?
Yes, in small amounts. Argan oil is less comedogenic than many oils and may even help regulate sebum in some people. Start with just a few drops on damp skin and see how your skin responds. If it makes breakouts worse, stop using it.
How long does it take to see results from argan oil?
Moisturizing effects (smoother, less flaky skin) may be noticeable within days. Anti-inflammatory effects on redness or irritation may take one to two weeks of regular use. Do not expect dramatic changes — argan oil is a gentle addition to a routine, not a treatment for serious skin conditions.
Is argan oil better than coconut oil or jojoba oil?
Not necessarily. Argan oil is less likely to clog pores than coconut oil, making it better for acne-prone skin. Jojoba oil is structurally closer to skin sebum. Rosehip oil has stronger human evidence for anti-aging. The best choice depends on your skin type and what you are trying to achieve.
Can I ingest argan oil for skin health?
Some supplements market oral argan oil, but evidence for internal use is very limited. Topical process is better studied. If you want to try it, talk to your doctor first, especially if you take medications or have medical conditions.