Facial oil contains essential fatty acids that repair the skin's barrier to reduce redness and dryness. They also nourish the skin, prevent moisture loss and provide a healthy glow. The oil or oil serum can either have a light formula (dry oil) and be applied before your day or night cream - but it can also have a rich texture, suitable to apply as the last step in your routine. Dry skin benefits from facial oils, as this skin type lacks natural lipids. Even an oily skin can benefit from facial oil, especially during the winter.