What it is: An ultimate age-defying vitamin C treatment serum that helps leave skin brighter, firmer and more even looking. What it does: This lightweight gel-cream formula contains 20% pure vitamin C along with three patented ingredients to create a stable, full-strength formula from first pump to last. It immediately provides you with smoother, silkier and more radiant, pore-less skin. Over time, lines, wrinkles, redness and dark spots are reduced. Its formula is enriched with EGCG, which is the most important active component of green tea that synergizes with vitamin C to help provide strong anti-aging protection. Squalane, derived from olive seeds, provides light moisture for even the most sensitive skin. Tartaric acid provides the optimum pH level for skin absorption. Research results: In an instrumental and image analysis study of 32 consumers with twice daily use over 4 weeks: - Over 90% saw reduced fine lines, younger-looking skin, healthier skin and improved texture - 100% saw more even skin tone and smaller pores - Participants noted a significant reduction in the look of dark spots, discoloration, deep lines and wrinkles - Participants noted this serum significantly firmed and tightened skin How to use: Smooth over clean, dry skin morning and night.