Brightening Vitamin C Serum Siperstein Dermatology Group Brighten Up Vitamin C Serum Vitamin C Brightening Serum: Uncover the Science of Radiant Skin VITAMIN C BRIGHTENING SERUM Less On Skin. This featherweight face serum contains two potent and highly stable forms of vitamin C that brighten and smooth skins tone and appearance, while providing instant hydration. skincare, skin care, organic skincare, natural skincare, wellness, self care