Frequently Asked Questions
Does olive oil help with skin health?
Extra virgin olive oil supports skin health through two pathways: internal (dietary consumption) and external (topical application). For a complete overview, see our Olive Oil Health Benefits guide.Internally, the polyphenols and vitamin E in EVOO reduce systemic oxidative stress and inflammation — both drivers of premature skin aging. The Mediterranean diet with high EVOO consumption is associated with better clinical skin aging parameters (wrinkle depth, elasticity, pigmentary changes) in observational studies. Externally, EVOO's fatty acid content moisturizes and supports the skin barrier, while its vitamin E provides antioxidant protection directly to skin cells. The combination of dietary + topical use provides the most comprehensive skin health support.1
Can I use olive oil on my face every day?
Using EVOO on the face as a daily moisturizer or cleansing oil is generally safe for most skin types, but there are important considerations. EVOO has a comedogenic rating of 2 (slightly pore-clogging for some people), meaning it may not be suitable for everyone — particularly people with acne-prone skin, where additional oils can worsen breakouts. For dry or normal skin, EVOO is an effective moisturizer. For sensitive skin, patch testing first is advisable. EVOO works best as: a pre-bath moisturizing treatment (apply, leave 20–30 minutes, wash off); a gentle oil cleanser (massage into dry skin, wipe off); or a night moisturizer (apply to clean skin before bed). Using it as a daytime moisturizer under sunscreen is also acceptable for dry skin types.1
The Skin and Oxidative Stress
Skin aging is driven primarily by oxidative stress — the accumulated damage from reactive oxygen species (ROS) generated by UV exposure, pollution, metabolic processes, and environmental stressors. ROS damage collagen and elastin fibers in the dermis, cause DNA damage in skin cells, and activate the inflammatory cascades that accelerate the degradation of the skin's structural components. The result: wrinkles, loss of elasticity, uneven pigmentation, and the thin, fragile skin Quality associated with aging.
The antioxidant defense system in skin — including vitamin E, vitamin C, glutathione, and antioxidant enzymes (SOD, catalase) — neutralizes ROS and prevents this damage. When antioxidant defenses are overwhelmed (by excessive UV exposure, pollution, or metabolic stress), oxidative damage accumulates and skin aging accelerates. Dietary antioxidants (from Mediterranean diet + EVOO) and topical antioxidants (including vitamin E from EVOO application) help maintain adequate antioxidant defenses, slowing the rate of oxidative damage accumulation in skin tissue.1
Vitamin E: The Skin's Primary Antioxidant
Vitamin E (alpha-tocopherol) is the skin's primary lipid-soluble antioxidant. It is present in the cell membranes of skin cells throughout the body, where it neutralizes ROS and prevents the lipid peroxidation chain reaction that damages cell membranes. When skin is exposed to UV radiation (the primary driver of extrinsic skin aging), vitamin E is depleted as it neutralizes the ROS generated by UV exposure. Topical vitamin E application is widely used in dermatology for this reason — it provides direct antioxidant protection that complements what the body's own vitamin E provides from within.
EVOO contains meaningful quantities of vitamin E (approximately 1.9mg per tablespoon — about 15–20% of the daily requirement). When consumed as part of the Mediterranean diet, this dietary vitamin E contributes to the body's overall vitamin E status and is delivered to skin cells through the bloodstream. When applied topically, it provides direct protection. The combination of dietary + topical use maximizes vitamin E availability to skin tissue.^13
Polyphenols and Skin Inflammation
The polyphenols in EVOO — particularly hydroxytyrosol and oleocanthal — reduce skin inflammation through the same NF-κB inhibition mechanism that drives their anti-inflammatory effects throughout the body. In skin, chronic low-grade inflammation (even at levels too subtle to cause visible redness) accelerates the degradation of collagen and elastin through the activation of matrix metalloproteinases (MMPs) — enzymes that break down the structural proteins of the dermis. By reducing NF-κB activation in skin cells, EVOO polyphenols reduce MMP activity and slow the rate of collagen degradation.
This anti-inflammatory effect is relevant for multiple skin conditions beyond aging: rosacea (a chronic inflammatory condition characterized by facial redness and papules), perioral dermatitis, acne (where inflammation is a significant contributor to pimple formation), and eczema. The Mediterranean diet's documented reduction in systemic inflammatory markers (CRP, IL-6) is expected to be reflected in reduced chronic inflammatory signaling in skin tissue as well. For people with inflammatory skin conditions, the Mediterranean diet + EVOO approach provides a systemic anti-inflammatory effect that complements topical treatments.^12
Fatty Acids and Skin Barrier Function
The outermost layer of skin — the stratum corneum — is composed of keratinocytes (dead skin cells) embedded in a lipid matrix of ceramides, cholesterol, and fatty acids. This lipid matrix is responsible for the skin's barrier function: preventing water loss (transepidermal water loss, TEWL) and blocking the entry of irritants, allergens, and microorganisms. When the skin barrier is compromised (by harsh cleansers, overwashing, genetic factors, or inflammatory conditions), TEWL increases, leading to dry, sensitive skin that is more susceptible to irritation and infection.
The oleic acid and linoleic acid in EVOO support skin barrier function by replenishing the fatty acid component of the stratum corneum lipid matrix. Studies in atopic dermatitis (a condition characterized by impaired skin barrier function) have shown that topical application of oils with high oleic acid content (like olive oil) reduces TEWL and improves skin barrier repair — particularly when applied after bathing, when the skin is still damp and the oil can trap moisture in the skin.1
Mediterranean Diet and Clinical Skin Aging
The direct human evidence for Mediterranean diet + EVOO and skin aging comes from several sources. A 2013 study in Clinical Nutrition examined 1,262 adults in Greece and found that higher adherence to a Mediterranean diet was significantly associated with better scores on clinical skin aging parameters — lower wrinkle scores, better skin elasticity, and fewer pigmentary changes. The association persisted after adjusting for age, sun exposure, smoking, and BMI, suggesting an independent effect of diet on skin aging.
A 2015 study in Skin Pharmacology and Physiology found that 50ml/day of EVOO for 12 weeks improved skin elasticity and reduced markers of oxidative stress in skin surface lipids in healthy adults. The improvement was measurable by objective testing (skin elasticity meters) and was attributed to the combined antioxidant and anti-inflammatory effects of EVOO polyphenols.
The practical implication: consuming Mediterranean diet + EVOO from midlife onward is a reasonable evidence-supported strategy for slowing the rate of skin aging. It is not a reversal of existing aging — no dietary or topical intervention can undo photo-damage that has already occurred — but it is a slowing of future damage accumulation.^23
Topical Use: How to Apply EVOO to Skin
For topical skin care, EVOO can be used in several ways:
Pre-bath moisturizing treatment: Apply 1–2 teaspoons of EVOO to clean dry skin before bathing. Leave for 20–30 minutes to allow the fatty acids to penetrate the stratum corneum. Then shower with a gentle cleanser. This is particularly beneficial for dry, flaky skin or for people with atopic dermatitis.
Oil cleansing: Massage EVOO into dry skin to dissolve makeup, sunscreen, and accumulated oils and debris. Wipe off with a soft cloth or rinse with water. This is gentler than soap-based cleansing and preserves the skin barrier.
Night moisturizer: Apply a thin layer of EVOO to clean skin before bed as a night moisturizer. Particularly useful for dry or sensitive skin. In the morning, rinse with water or cleanse gently.
Targeted treatment for dry areas: Apply a small amount of EVOO to particularly dry areas (elbows, knees, hands) and massage in. The fatty acids provide longer-lasting hydration than water-based creams, which evaporate quickly.
Note for acne-prone skin: EVOO may worsen breakouts in some people with acne-prone skin due to its comedogenic rating. If you have acne-prone skin, use EVOO topically with caution — try it on a small area first, and avoid using it on the face if you notice increased breakouts. The dietary consumption of EVOO is still beneficial for skin health from the inside out.1
References
- [1] PMCID PMC6770583 — Olive Oil Phenolic Compounds: https://pmc.ncbi.nlm.nih.gov/articles/PMC6770583/
- [2] PMCID PMC5871313 — Olive Oil and Skin Aging: https://pmc.ncbi.nlm.nih.gov/articles/PMC5871313/
- [3] PubMed 24670264 — Mediterranean Diet and Skin Health: https://pubmed.ncbi.nlm.nih.gov/24670264/