Review (4/5): BUY this stuff, it works!
I have tried many, many deodorants, both "natural" and poisonous throughout my 51 year lifespan. This deodorant is by far the best one in terms of eliminating odor and the longevity of doing so. Only the higher price point precludes me giving it 5 stars. I have been using this brand, scent free, for over 6 months.
As for the burning, rash, irritation. I did experience some initially, but that can usually be attributed to the "detox" effect of your previous deodorants, etc. . .