SkinCeuticals A.G.E. Interrupter is specially formulated to correct and prevent the damage to skin caused by glycation, the sticking of glucose molecules to collagen and elastin leading them to lose ability to function normally. The skin then becomes crepe-y, thin, and wrinkled. This treatment prevents the glycation process and corrects previous damage done to the skin through the use of Blueberry Extract, Proxylane and Phytosphingosine.Who is this for?Ideal for those with mature, aging skin caused by intrinsic or internal aging processes who want lifted, smooth and firm skin.