Ferulic acid is a natural compound found in various plants, including grains like rice and wheat, as well as fruits and vegetables. It acts as an antioxidant, helping to protect cells from damage caused by free radicals, which are unstable molecules that can lead to aging and disease. In skincare, ferulic acid is often used in serums and creams due to its ability to enhance the stability and effectiveness of other antioxidants, such as vitamin C and vitamin E. This makes it a popular ingredient for those looking to improve skin health and reduce signs of aging.