velofel to it now like I said I only had two patients ever allergic to it so the good news is most of you probably aren't so this is made up of PMMA microspheres that's what makes the Bella feel semi-permanent so it last up to about ten years and in some patients it's even lasted longer so a one question before I kind of you want more we can build on top of what you already have I kind of phrase like fillers are kind of like Legos you can build them on top of each other to where you want to go so I have some patients that come in they do their initial injection and they're like oh my god this is