Intensive Brightening Treatment: 0.5% Pure Retinol - PCA SkincareThe ultimate pure retinol nighttime treatment for those with discoloration. A powerful nightly treatment that creates an even, bright and radiant complexion Pure retinol, resveratrol and niacinamide promote a healthy glow while improving discoloration Potent, stable ingredients in a patented Omnisome delivery system to carry ingredients deeper into the skin for superior results Full ingredient list: Water, Isododecane, Cyclopentasiloxane, Niacinamide,