I bought this for my husband from a Whole Foods Store. It runs about $7. He absolutely loves it. He's never had a problem with sweating ever, so he didn't need to try my Certain Dri. He's very health conscious anyway so he didn't want to use anything with aluminum of any sort. He had been looking to find something all natural, so I got this for him to try. He was skeptical at first, but he used it and after a day of working outdoors, he was amazed that there was no odor at all. He's never really had a problem with odor anyway unless he actually did get all sweaty from working outdoors and even then he never really had a"stink". He was really happy that this works for him. I also bought another brand for myself which I will write a separate review.