This Secret Xtend Invisible Solid with 48 hour technology fails in every aspect of its name. Let's start with 'solid': it's more like a powder. Does not go on smooth but powdery. Second: it's not invisible. Leaves white marks on all clothing types. Third (and the biggest disappointment): does NOT last! I typically use clinical antiperspirants that are meant to last 24 hours. This product doesn't even come CLOSE to that level of effectiveness. Let me tell you, I was in an odd situation where I had to spend 24 hours in a hospital, sleeping on a couch. This has happened to me before (so not such an odd situation in my case) where I was wearing my usual 24 hour clinical deodorant which worked fine. I bought this 48 Secret Xtend because I was afraid of being in this situation again and wanted something that worked AMAZINGLY well and not just fine. Guess what? It FAILED! Did NOT last! I was not happy when I smelled of B.O. after this ordeal, especially knowing that my usual product would've done the job. This product gets a big 'F' for false advertising. Do yourself a favour and stay away.