Viva Bio Brightening C Serum is a concentrated vitamin C serum suitable for all skin types. Vitamin C is critical for your body and plays an important role in maintaining healthy, resilient skin. While young skin is full of vitamin C, aging skin naturally loses this nutrient over time. Other factors like exposure to UV light, pollutants and cigarette smoke compound the decline of vitamin C, contributing to signs of aging. The good news is that you can fight back! By replenishing your skin’s vitamin C levels you can combat and even reverse the effects of time on your skin.