CeraVe's Vitamin C Serum is a brightening antioxidant serum formulated with 10% pure vitamin C (L-ascorbic acid) alongside hyaluronic acid and three essential ceramides. It's designed to help even out skin tone, soften the look of dark spots, and protect against environmental damage, while the ceramides support the skin's natural barrier and hyaluronic acid helps keep skin hydrated. The lightweight, fast-absorbing texture is fragrance-free and suitable for all skin types, including sensitive skin, and it's non-comedogenic. Best used once daily in the morning on clean, dry skin before moisturizer, followed by sunscreen since vitamin C works well alongside SPF. A good option for anyone looking to add an antioxidant brightening step to their routine without irritation.