Argan oil: myth or real effect on the skin

The myth: "Morocco's liquid gold" would fix everything. The actual effect is that of a very good all-purpose emollient—and the real question isn't what it does, but which one you've bought.

The composition of argan oil

Approximately 45% oleic acid and 35% linoleic acid, resulting in a balanced profile between nourishment and lightness. Its unsaponifiable fraction, around 1%, contains tocopherols, plant sterols, and polyphenols.

This composition explains its behavior: it nourishes without suffocating, penetrates in a few minutes, and leaves a supple finish. On paper, nothing exceptional—several vegetable oils have a similar profile. What distinguishes it is more its versatility than any measurable superiority.

What argan oil actually does for the skin

It strengthens the hydrolipidic film by providing lipids that the skin does not always produce in sufficient quantities. It limits water loss, which improves comfort and suppleness. On dry skin, the effect is felt from the first applications.

In terms of anti-aging, the contribution is indirect and modest: well-moisturized skin appears more supple and reflects light better. No vegetable oil acts on established wrinkles, and this one is no exception despite what is often claimed.

The real issue: cosmetic or food grade

There are two types of argan oil, and they are not used for the same purpose. Food-grade oil is obtained from roasted kernels: it is brown, smells of roasted hazelnuts, and has no place on the face. Cosmetic-grade oil comes from unroasted kernels: it is golden with a discreet scent.

This is the most common confusion, and it explains some of the disappointments. A pure argan oil sold in a specialty food store is not a skincare oil, regardless of its price.

How to choose

Cold-pressed, un-deodorized, in an opaque bottle, with "Argania spinosa kernel oil" on the label. Organic argan oil guarantees the cultivation method, not the pressing method—both mentions are useful together.

A completely absent smell indicates deodorization, and thus a loss of some compounds. A roasted smell indicates food-grade oil. Between the two, a discreet vegetal note is the good sign.

How to apply argan oil

Two to three drops warmed between the palms, pressed onto the face without rubbing, on clean and still damp skin. Morning and evening on dry skin, evening only on normal skin. Always after the aqueous phase: an oil applied to dry skin lubricates without hydrating.

On oily skin, it is generally well tolerated but remains dispensable—a lighter face care product will work better. On combination skin, it is reserved for the cheeks and jawline.

What it doesn't replace

Neither a water supply, which it does not provide; nor sun protection, which no vegetable oil provides, regardless of the SPF sometimes attributed to it; nor an active ingredient, if you are looking to treat spots or texture.

Using argan oil as the last layer of a complete routine, morning and evening, is its proper use. Our argan oil sheet details the quality criteria, and the nourishing face oil plays the same role in a stabilized formula.

Fatty acids and vitamin E

Its unsaponifiable fraction contains tocopherols—natural vitamin E—at higher levels than in most vegetable oils. These antioxidants protect the formula from oxidation and contribute to the protection of the surface film against oxidative stress.

This also explains its good shelf life: twelve to eighteen months after opening, whereas an oil rich in polyunsaturated fats lasts three to six months. A concrete argument, rarely highlighted because less marketable than a benefit.

On the skin barrier

Its fatty acids nourish the hydrolipidic film, which limits water loss and improves suppleness. On dry skin, the effect is felt within a few days; on normal skin, it takes two to three weeks to establish.

It does not strengthen the skin barrier in the way ceramides do—it does not provide the lipids of the intercellular cement. It complements externally, which is a different and useful contribution.

On the face, how to use it

Two to three drops after the aqueous phase, in the evening. Mixed with a cream to lighten the texture, or pure on dry areas. On combination skin, avoid the T-zone. On blemish-prone skin, it is still possible but a one-week trial on a small area is recommended before generalized use.

On hair, a few drops on the lengths and ends, never on the scalp if it tends to get greasy quickly. It's the same product, with the same rule: little, and often.

Soothing properties

It is credited with a soothing role for sensitive skin. What is observed is mainly due to the return of comfort provided by a reconstituted surface film: skin that no longer feels tight reacts less. It is not a calming active ingredient; it is an emollient that does its job well.

It is well tolerated in the vast majority of cases and is among the oils least likely to cause a reaction, which explains its place in ranges designed for reactive skin.