Skinbetter Alto Advanced Defense and Repair Serum is a potent antioxidant formula designed to protect against environmental and intrinsic oxidative stress. It combines vitamins C and E with 17 additional antioxidants to help improve skin tone, texture, and radiance while reducing redness and signs of aging. Suitable for all skin types, this serum supports the skin's natural renewal process for a healthier, more youthful appearance.