Instead of treating signs of aging with just one ingredient, use Obagi Professional C Peptide Complex which contains several proven ingredients that help fade signs of damage. Vitamin C brightens skin and defends against free radicals while growth factors repair damaged cells for a softer, smoother texture. The formula also contains peptides that stimulate collagen production to reduce the depth of fine lines and wrinkles. Applying this serum to the entire face will create a smooth complexion that looks revitalized and youthful.