This serum is a must for any skin care routine. It's formulated to be light, yet bring a high concentration of vitamin C esters to the skin on a daily basis. Vitamin C esters & extracts make this serum luscious. The vitamin C esters absorb readily into the skin and is used at high concentrations in this serum without stinging your skin. Vitamin C esters, vitamin E and various extracts create a synergetic blend that helps fight off the assault your skin encounters on a daily basis from free radicals. You can count on this serum to support, balance, brighten and revive tired, dry, or dull skin. Skin Types: Mature - Dry - Normal - Sensitive - Combination Organic Content: Yes pH: 4.