Caudalie Vinoperfect Radiance Dark Spot Serum - 62x more effective than Vitamin C The worldwide best-selling Anti-Dark spot serum! This patented, lightweight serum is proven to be 62x more effective than Vitamin C in correcting dark spots,acne scars,sunspots,brightening skin tone, and boosting radiance. Anti-Dark Spots, Brightening, and Smoothing Texture, radiance serums LTKGiftGuide LTKbeauty LTKunder100