This serum is scientifically proven to lighten dark spots in just 4 weeks. The secret ingredient is Caudalie's patented Viniferine. Extracted from vine stalks, Viniferine is reportedly 62 times more effective than Vitamin C for free radical protection. It also helps to clear the complexion and reduce pigmentation, correcting existing dark spots and prevent the appearance of new ones. Vinoperfect provides antioxidant and anti-ageing action by stimulating elastin and collagen production.