Olive Oil: Comedogenic Rating & Ingredient Analysis
Olive oil is one of the oldest cosmetic ingredients in the world, used on skin and hair for millennia. As an emollient it is rich, cushioning and full of antioxidants, which makes it a comforting choice for dry, mature and normal skin. But olive oil is not a universal skincare hero. It is high in oleic acid, a fatty acid that is more disruptive to the skin barrier than the linoleic acid found in lighter oils, and research has shown that olive oil can actually weaken the barrier in some people. With a comedogenic rating of around 2, it is also not the best pick for acne-prone or very oily skin. Understanding its strengths and limits is the key to using it well.
Quick facts
- Comedogenic rating
- measured (Fulton 1989)
- Irritation risk
- Low
- Effective pH
- —
- Typical strength
- 1–100%
- Pregnancy
- Considered safe
- Suits skin types
- drynormalmaturesensitive
Where this number comes from
Read directly from Table I of Fulton's 1989 paper — the primary source, not one of the copied tables that circulate online.
Fulton read his own scale as 0-1 not significant, 2-3 borderline, 4-5 positive. The assay is the rabbit ear at 10% dilution, which the paper itself calls extremely sensitive and not fully predictive of human skin. Ratings describe the raw ingredient; concentration and formulation change real-world behaviour.
Caution profile
The four published fields on this page, on one 0–5 scale. Further from the centre means more care is needed — never that the ingredient is worse.
Derived, not measured: pore-clogging is the published comedogenic rating; irritation maps low/moderate/high to 1/3/5; pregnancy maps safe/caution/avoid to 0/3/5; skin-type limits is how many of the seven skin types this entry does NOT list. Every input is printed in words in the quick-facts card above.
Show the numbers
| Metric | 0–5 | Published field |
|---|---|---|
| Pore-clogging | 2 | 2/5 |
| Irritation | 1 | Low |
| Skin-type limits | 2.1 | 4/7 |
| Pregnancy | 0 | Considered safe |
Working pH and typical strength
Where this ingredient is formulated to sit, and at what concentration.
Both bars come from the fields above: the pH window and the typical strength range published for this ingredient. The tinted column is healthy skin's surface pH (about 4.7–5.75).
Show the numbers
| Metric | 0–5 |
|---|---|
| Typical strength | 1–100% |
What is it?
Olive oil (Olea Europaea Fruit Oil) is pressed from the fruit of the olive tree and is composed mainly of oleic acid, a monounsaturated omega-9 fatty acid, along with smaller amounts of linoleic and palmitic acids and a valuable fraction of antioxidants like vitamin E and polyphenols. That antioxidant content is one of its genuine strengths. Its fatty acid profile, however, is heavy on oleic acid, which studies suggest can disrupt the skin barrier and increase water loss, particularly on already compromised or sensitive skin; one comparison found olive oil impaired the barrier more than sunflower oil. As a rich, partly occlusive emollient it softens and seals the skin. It carries a comedogenic rating of about 2, meaning a moderate clogging potential that matters most for acne-prone skin.
Benefits
Rich emollient for dry skin
Olive oil deeply softens and cushions dry, rough skin, easing tightness and leaving a comfortable, nourished feel.
Antioxidant content
It supplies vitamin E and polyphenols that help defend the skin against some of the free radicals produced by daily environmental stress.
Seals in moisture
As a partly occlusive oil it slows water loss from the surface, making it useful as a final nourishing step over humectants on dry skin.
Softens and conditions
Its cushioning texture conditions the skin and can be useful in balms, massage products and treatments for very dry areas.
How to use
Use olive oil as a nourishing final step on dry skin, applied over humectants like glycerin or hyaluronic acid to seal in water. A few drops on damp skin go far; it is rich, so more is not better. It suits dry and mature skin and areas like elbows and hands, but is best kept off acne-prone and very oily areas given its comedogenic rating. For a lighter, barrier-friendlier oil, linoleic-rich options like safflower oil or stable squalane are alternatives. Choose a well-packaged cosmetic-grade oil and store it away from heat and light.
Side effects
Olive oil is generally well tolerated, but its high oleic acid content can disrupt the skin barrier in some people, especially those with sensitive, eczema-prone or already compromised skin, so it is not automatically soothing. With a comedogenic rating of about 2, it can contribute to clogged pores on acne-prone skin. It does not increase sun sensitivity. If your skin feels more reactive or breaks out after using it, switch to a lighter, linoleic-rich oil.
Who should avoid it
Acne-prone and very oily skin should generally avoid olive oil on the face because of its comedogenic potential. People with a compromised or eczema-prone barrier may find its oleic acid content aggravating rather than soothing and should test cautiously or choose a linoleic-rich oil instead.
Frequently asked questions
Is olive oil good for your face?
It can nourish dry, mature skin as a rich emollient with antioxidants, but its high oleic acid content may disturb the barrier in some people, and its comedogenic rating of around 2 makes it less suitable for acne-prone skin.
Does olive oil clog pores?
It has a comedogenic rating of about 2, so it has a moderate potential to clog pores. Dry skin often tolerates it, but acne-prone and oily skin may prefer lighter oils.
Is olive oil good for eczema?
Not necessarily. Its high oleic acid content has been shown to weaken the skin barrier in some studies, so it may aggravate rather than soothe eczema-prone skin. A linoleic-rich oil is often a safer choice.
Can I use kitchen olive oil on my skin?
Cosmetic-grade, well-preserved olive oil is preferable, but pure olive oil is the same lipid. Just be mindful of its richness, comedogenic potential and its effect on the barrier for sensitive skin.
Sources & further reading
Medical disclaimer
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