The Skinceuticals C E Ferulic Vitamin C Antioxidant Serum is the best antioxidant serum I've ever used. The glow I get from this serum is unreal, as well as the long-term benefits “provided”. It’s a major skin investment. The combination of vitamin C, vitamin E, and ferulic acid provides a potent antioxidant effect, protecting the skin from environmental damage, free radical damage, while improving the appearance of fine lines and wrinkles. It’s a must-have for anyone looking to achieve a radiant and youthful complexion. Whether you're dealing with hyperpigmentation like myself or prevent aging, this serum delivers impressive results.