C E Ferulic Brightening Serum by Zone - 365 Beauty is a powerhouse serum that contains 3 of the most vital nutrients for skin nourishment and restoration. It contains 0.5% Ferulic Acid with 15% Vitamin C and 2% Vitamin E. Ferulic acid is a plant-based antioxidant that can help shield the skin from sun damage caused by harmful UV rays. It also has the capacity to boost the effects of Vitamin C and Vitamin E, increasing the potency of these nutrients for the ultimate skin care solution. Vitamin C serum helps brighten the skin complexion, making the skin glow after a few weeks of use. It creates a defense line for the skin against free radicals that speeds up the aging process. Vitamin E, on the other hand, keeps the skin healthy and improves cell function.