In the old days in the vineyards the grapevine sap was used by young girls who smeared it on their face and hands to reduce dark spots and clarify their complexion caudalie research has succeeded in isolating pure natural active ingredient from grapevine sap viniferine whose activity on radiance and dark spots is truly exceptional vinoperfect radiance serum is both effective and natural this anti dark spot serum boosts radiance and helps even the skin tone corrects dark spots and prevents