Linoleic acid is an essential fatty acid that belongs to the omega-6 family of fatty acids. It's a natural component of many vegetable oils like safflower oil, sunflower oil and soybean oil. In skincare, Linoleic acid helps maintain skin's lipid barrier and keep skin hydrated, smooth and protected. It's particularly beneficial for individuals with dry or sensitive skin and is often used in moisturizers, serums and skincare products designed to support skin health.