- The ultimate pure retinol nighttime treatment for those with discolouration - A powerful nightly treatment that creates an even, bright and radiant complexion - Pure retinol, resveratrol, and niacinamide promote a healthy glow while improving discolouration - Potent, stable ingredients in a patented Omnisome delivery system to carry ingredients deeper into the skin for superior resultsCORRECT PCA Skin Intensive Brightening Treatment: 0.5% Pure Retinol Night The ultimate pure retinol nighttime treatment for those with discolouration Read Andrea's Product Review Here PCA Skin Intensive Brightening Treatment: 0.5% Pure Retinol Night is an advanced retinol treatment that reduces signs of discolouration. It brightens and smoothes the complexion with visible results in as little as four weeks. Pure retinol, resveratrol and niacinamide promote a healthy, even glow. Potent, stable ingredients in a patented Omnisome delivery system carry ingredients deeper into the skin for superior resu