Olive Oil
OilMoisturizingNaturalAlso known as: Olea Europaea Oil
Olive oil is one of the oldest known oils used in human skincare, with documented use dating back to ancient Egyptian, Greek, and Roman civilizations. It is pressed from the fruit of the Olea europaea tree and is composed predominantly of oleic acid (65-80%), with smaller amounts of palmitic acid (7-14%), linoleic acid (4-12%), and stearic acid (1-4%). Extra virgin olive oil (EVOO) retains the highest concentration of bioactive phenolic compounds, including hydroxytyrosol, oleuropein, oleocanthal, and tyrosol, which are among the most potent natural antioxidants ever studied. Hydroxytyrosol in particular has an ORAC value estimated to be 10 times that of green tea catechins. The oil also contains squalene (up to 0.7%), phytosterols, and fat-soluble vitamins A, D, E, and K. Despite its long history, modern dermatological research has revealed a more nuanced picture of olive oil's suitability for topical use, particularly regarding its potential to disrupt skin barrier function in certain individuals.
Polyphenolic antioxidants, especially hydroxytyrosol and oleuropein, provide exceptionally potent free radical scavenging and protection against UV-induced and environmental oxidative stress. Oleocanthal exhibits ibuprofen-like anti-inflammatory activity, reducing COX-1 and COX-2-mediated inflammation in the skin. Squalene content closely mirrors the squalene naturally produced by human sebaceous glands, providing biocompatible moisturization and skin softening. Rich emolliency makes it effective for extremely dry, rough, and cracked skin on the body, particularly heels, elbows, and hands. Historically effective as a gentle makeup remover and cleansing oil that dissolves sebum and cosmetic products without harsh surfactants. The vitamin E content supports wound healing and helps minimize post-inflammatory hyperpigmentation.
Best used as a body oil rather than a facial oil, particularly for very dry skin areas. Apply to damp skin after bathing for maximum absorption and moisture retention. As a cleansing oil, massage a small amount onto dry facial skin to dissolve makeup and sunscreen, then remove thoroughly with a warm, damp cloth or follow with a gentle cleanser. For cracked heels or cuticle care, apply liberally and cover with cotton socks or gloves overnight. Can be used as a gentle and effective eye makeup remover. When using on the face, choose extra virgin olive oil and limit use to occasional treatments rather than daily application, and always monitor for any signs of barrier disruption such as increased dryness or irritation.
Olive oil has an extensive research base, though recent studies have tempered earlier enthusiasm about its universal suitability for topical skincare. A pivotal 2013 study published in Pediatric Dermatology compared olive oil and sunflower seed oil on adult forearm skin, finding that olive oil significantly increased transepidermal water loss and caused mild erythema, while sunflower seed oil improved hydration. This was attributed to the high oleic acid content disrupting the ordered lamellar lipid structure. However, research on the isolated polyphenolic fraction tells a different story: hydroxytyrosol has demonstrated photoprotective activity in multiple studies, with a 2014 paper in the Journal of Nutritional Biochemistry showing it protected keratinocytes from UVB-induced DNA damage. Oleocanthal was identified as a natural anti-inflammatory comparable to low-dose ibuprofen in a landmark study published in Nature. The squalene content has been studied for its comedogenic and non-comedogenic effects, with results suggesting squalene itself is beneficial but may become problematic when oxidized. Overall, the evidence supports targeted use of olive oil for body care and cleansing, while cautioning against heavy facial application on compromised skin.
- Olive pollen or olive fruit allergy
- Active eczema or severely compromised skin barrier (facial use)
Cautions
Modern dermatological research has raised important concerns about olive oil's topical use, particularly on the face. Its very high oleic acid content (65-80%) can disrupt the lamellar structure of the stratum corneum, increasing transepidermal water loss and potentially worsening barrier function in individuals with compromised skin. A 2013 study showed that olive oil application to the forearm skin of healthy adults significantly damaged the skin barrier. For this reason, olive oil is generally not recommended as a primary facial moisturizer, especially for individuals with eczema, rosacea, or otherwise compromised barriers. It is better suited for body use, short-contact applications such as cleansing, or occasional intensive treatments. Individuals with known allergies to olive pollen or olive fruit should avoid topical use.
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