A necessity for city dwellers and sun worshippers, the Resveratrol Serum 3% + Ferulic Acid 3% from The Ordinary is a water-free, high potency antioxidant serum that effectively shields the skin from harmful environmental aggressors that oxidise on the skin, causing lasting damage.Combining very high concentrations of two of the most potent antioxidants Resveratrol and plant-based Ferulic Acid, the serum delivers anti-ageing benefits, smoothing the appearance of fine lines and wrinkles and helping the skin defend against harmful factors. As water can impair the stability of any antioxidant, the formula does not contain any water, sillicones, oils or alcohols.