Olive oil is a nutrient widely used as a salad oil and in cooking. It has also been used as a vehicle for oily suspensions for injections, topically as a demulcent and emollient, and as an enema. Historically, it has been used as a laxative. Olive oil is an element of the Mediterranean diet and is promoted as a beneficial source of dietary fat to improve the lipid profile and reduce cardiovascular morbidity. Clinical trials are limited and generally have been conducted as part of epidemiological studies to validate observed cardiovascular effects and glycemic response.

People with dry skin may see benefits from using an olive oil-based face mask. Olive oil mixed with ingredients such as egg white, honey, or ground oats can soften and hydrate the face.Wrinkle treatment:Due to its antioxidant content, olive oil may reduce aging skin and wrinkles. The oil can be dabbed around the eye area at night or following sun exposure.Scar oil:The vitamins and other antioxidants in olive oil may fade scars by helping skin cells to regenerate.Simply massage the undiluted oil into scars or mix it with a squeeze of lemon juice to treat areas of hyperpigmentation, where the skin has darkened due to scarring.