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. KEY BENEFITS Pure vitamin C (ascorbic acid) is clinically proven to boost collagen and fight free radical damage. How To Use After cleansing in the morning, massage 5 drops of Pure C15 across the face, neck and décolletage. Leave to absorb before applying moisturiser. For freshness, use up one bottle before opening the second. Patch testing prior to use is advised. Refer to medik8.com/patch-test for an in-depth guide to patch testing.