The most remarkable quality of this supplement is it's packaging and physical form. The tablets are sealed in an airtight sheet of popout indidual pockets. This preserves their freshness. The first time you put one in your mouth, you'll be pleasantly surprised. They taste good and dissolve easily. You could chew them ! Of course, blood flow, better blood flow is what they are about. Every artery or vessel as well as organs get more efficient blood supply. What more important activity is there ? Highly recommended!