Explore 1 honest Biba de Sousa Brightening, Hydrating and Plumping Vitamin C Serum made with three types of vitamin C at optimum functional levels. Paired with Collagen Amino Acids, this serum will help illuminate and plump up your complexion. Great for aging and pigmented skin. Acne safe: Brown 1 fl oz video reviews from the Flip community to help you find out if it’s the right product for you.