1 | 3LAB has addressed the instability of vitamin C in its Perfect Repair serum by matching the vitamin with a molecule that keeps it from oxidizing. $175; barneys.com
2 | Rich in hyaluronic acid and antioxidants, Biologique Recherche Serum Yall~02 moisturizes and plumps up skin. $75; biologique-recherche.com
3 | La Prairie packs six different antioxidants into its Anti-Aging Longevity Serum. $210; laprairie.com
















