Protect and rejuvenate your skin with SkinBetter Science's Alto Advanced Defense and Repair Serum. Packed with Vitamin C, E, and 17 other known antioxidants, this serum defends against environmental and internal stressors, while proprietary W.E.L. and T.A.P. technologies repair and revitalize dry skin for a youthful, healthier look. Dermatologist tested and free of parabens and fragrance.