TNS ESSENTIAL SERUM™ is the first anti-aging serum to combine growth factor serum in one chamber and APS Corrective Complex™, a mixture of antioxidants, peptides, Vitamin C, Vitamin E, and other anti-aging ingredients in the other chamber. Together these products work to improve the appearance of fine lines, wrinkles, and the overall tone and texture of your skin. They help to combat environmental damage and strengthen the skin’s natural healing ability.