I am using it on my side, not its intended use. The one for the armpits is a little less cost-effective, so I bought the one for the hands and feet this time. Apply it after your armpits are completely dry and immediately dry it with a hair dryer to avoid itching. In my case, the feeling and effects are not much different from those for underarm use. I used to use Ra○i○n in the past, but the newer ones seemed to be less effective than the early ○Virin, so I tried an aluminum chloride antiperspirant, and it was extremely effective. hey. My armpits don't sweat at all and there's no odor. All aluminum chloride antiperspirants from overseas have roughly the same effectiveness. If the effects are the same, then cost performance becomes more important. This product is a type that you apply directly to your hands, but I use it by reusing an empty Doku○ container (the roll part comes off).