Vitamin C & Hyaluronic Acid Serum is the most potent moisturizer and humectant for dry and aged skin. Hyaluronic acid infused with vitamin C. Hyaluronic Acid with vitamin C delivers the most effective anti aging and anti wrinkle serum for skin. This ?must have? HA serum infused with vitamin C helps to restore elasticity and firmness to the skin. Use after your toner and boost moisture with small molecule hysilk Hyaluronic acid infused with vitamin C. Use after your toner and boost moisture with small molecule hysilk Hyaluronic acid infused with vitamin C. If your skin is slightly sensitive to the high percentage of Vitamin C, use less often but dread not your skin will soon adapt and react positively to the amazing healing and restoring power of Vitamin C and hyaluronic combination. The hysilk small molecule hyaluronic will penetrate the outer layer of your skin and boost moisture like never before. Unleash the radiance of your skin and get a glowing even toned result in the process.