SkinCeuticalsA.GE Interrupter Glycation is one of the main causes of obvious skin aging. When too much glucose molecules adhere to collagen and elastic fibers, it will promote the production of glycation end products and cause severe wrinkles. . The exclusive formula of Revitalizing Firming Cream contains 4% blueberry extract, 30% patented firming factor Boseine Pro-XylaneM and 0.2% phytosphingosine to prevent glycated aging and improve the severe signs of aging in mature skin.