Elf Skin Vitamin C + E + Ferulic Serum 30mlWhat it is: A potent, brightening serum formulated with 15% vitamin C, 1% vitamin E and 0. 5% ferulic acid for radiant, even looking skin. e. l. f. tip! If you are new to vitamin C or have sensitive skin, patch test and build up tolerance. Why youll love it: Brightening serum formulated with a triple threat of 15% vitamin C, 1% vitamin E and 0. 5% ferulic acid Helps visibly brighten, even out skin tone, soothe, reduce the look of dark spots and fine