The use of olive oil for dermatitis has some scientific basis, although evidence is limited and somewhat mixed. Olive oil has been traditionally used for skin care due to its emollient properties and content of antioxidants such as vitamin E and polyphenols. Small clinical studies have explored its effects on skin barrier function and inflammation. For example, a study published in Pediatric Dermatology (2008) found that topical olive oil did not improve—and may even worsen—skin barrier function in infants, especially compared to sunflower seed oil. Other research suggests that olive oil may have anti-inflammatory effects due to its high oleic acid content, but this same component can disrupt the skin barrier in some individuals, particularly those with existing atopic dermatitis.

Olive oil is not generally recommended as a primary treatment for dermatitis by dermatology guidelines, primarily due to concerns about potential skin irritation or delayed barrier recovery. However, it is sometimes included as an ingredient in creams and emollients for its moisturizing properties. Overall, while there is some scientific rationale for its use (antioxidant and anti-inflammatory effects), the evidence supporting olive oil as a treatment for dermatitis is limited, and it may not be suitable for all patients—especially infants or those with sensitive skin.

In conclusion, olive oil has a traditional role in skin care and limited scientific evidence for dermatitis, but its use should be approached with caution.