I have tried more natural deodorant brands than I can count...even attempting to make some homemade natural deodorant. Every time I tried a new brand in the past, things were great for 10-14 days...then I would break out in a rash, have skin cracking, sore and/or even swollen patches of skin, etc. Ultimately, I would have to make yet another switch. While non-natural deodorants do not cause me the same issues, they come with many chemicals that I do not want to put on my body. More than a year ago my wife came home with PNY Beauty Natural Mineral Deodorant for me to try out. I have used this deodorant for a full year without any adverse reactions whatsoever!!! AND ONE STICK CAN LAST A FULL YEAR+!!! I have finally found a REAL solution and will be a lifelong customer!!! Thanks so much!!!