Formulated using pure vitamin C, Pure C15 is perfect for those who are experienced using vitamin C in their regime and are looking for a higher strength. ?Pure vitamin C (ascorbic acid) is clinically proven to boost collagen and fight free radical damage. ?This innovative serum visibly brightens skin tone, smooths fine lines, firms tired skin and refines skin texture. ?The result is a radiant, smooth and noticeably more youthful-looking complexion. ?The light serum sinks in rapidly and provides an immediate energising and supple feeling to the skin. Formulated using pure vitamin C, Pure C15 is perfect for those who are experienced using vitamin C in their regime and are looking for a higher strength.