Reveal a radiant and rejuvenated complexion with Kiehl’s Powerful-Strength Line-Reducing Concentrate. Powered by 12.5% vitamin C and hyaluronic acid, the serum works to brighten and hydrate the skin, while glycerin offers moisture retention. The anti-ageing formula also incorporates 10.5% L-ascorbic acid and 2% ascorbyl glucoside. Plumping the skin with moisture, the serum helps to reduce the appearance of fine lines, wrinkles and uneven texture, whilst restoring a youthful-looking luminosity. This vitamin C serum is carefully-formulated to provide clinically-proven, visible results in a concentration gentle enough for sensitive skin.