Love Derma-nu [SEP] Hyaluronic Acid? I never knew what it was until recently :) sounds like something you use in the brakes on your car. hyaluronic acid (also known as hyaluronan) is a glycosaminoglycan, a type of molecule composed partly of sugars. Hyaluronic acid is actually a natural structural component of skin, and, in fact, is present in connective tissue throughout the human body.<br /><br />The awesome thing about Hydrolic Acid is its ability to retain moisture; it’s considered to have a greater capacity to hold moisture than any other natural or synthetic polymer. In fact, one gram of hyaluronic acid is able to hold up to six liters of water. The hallmarks of youthful skin is its moisture content. A dried up face will age you quicker then anything.<br /><br />Hyaluronic acid can improve your skin’s moisture content and at the same time strengthen skin’s barrier; that is, the outer layers of your skin. A healthy barrier looks and feels softer, smoother, and plumper. This does all of that. Sense menopause I have suffered from dry skin. This has made a big difference in how my face looks and feels. Thank you Derma-nu for another 5 star product and Thank you for letting me try this at a reduced rate for my hoest review