Vitamin C is an Antioxidant that fights against free radicals and reduces oxidative stress. A common example of oxidative stress can be observed when you take an apple, cut it in half, and leave it on the counter. You’ll notice that it starts to brown and soften. Ever notice how the skin of the apple stays intact longer? Vitamin C accelerates the production of both collagen and elastin, which helps to keep the skin plump and firm. Topical vitamin C can help prevent premature aging of the skin, restoring a youthful, smooth appearance. Vitamin C-based skin care products, such as C&E Brightening Serum, may lighten patches that are darker than the rest of your skin (hyperpigmentation).