The Inkey List Vitamin C SerumHelps brighten skin A hero antioxidant and skin brightening ingredient. It helps to tackle the appearance of hyperpigmentation, dullness and fine lines. Formulated with 30% pure L ascorbic Acid, this serum helps skin appear brighter and target signs of aging whilst also helping to protect against free radicals and pollution. Best used in the AM, the rich, creamy texture gives an instant smoothing effect making it a great base for makeup. How to use