Obagi Professional C Serum 20% 30ml1oz Size:12.5ml 0.42oz eight times more effective than Cobalt Conditioner eight times more effective than standard Retinol Helps stimulate rejuvenation process by boosting skin's natural production of collagen Contains Hyaluronic Acid & Peptides for enhanced hydration & plumping Reduces the appearance of minor dark spots & fine lines around the lips Leaves lips soft sandalwood & vanilla Launched in 2007 Suitable for spring or summer wear a form of Vitamin C Rapidly & deeply penetrates into skin Neutralizes free radicals to prevent skin from being damaged Accelerates collagen synthesis & offers sun & optimum antioxidant protection Stays on skin for up to 72 hours Skin appears healthy & ageless looking A protective serum concentrate Contains 20% L ascorbic acid