I've had a problem with excessive wettnes under my arms for as long as I can remember. For probably the last 10 years or so. I never smell bad, but the wetness was so embarassing! And it would happen for no reason at all, like just sitting at work or in class, when I wasn't even warm. Made NO sense. I'd seen Certain Dri at the store on occasion, but for whatever reason never purchased it. I think I was in denial. Anyway, I bought it yesterday, and used it before bed like the instructions say. THIS IS A MIRACLE PRODUCT. ONE application, ONE night, and I have zero sweating today. I used to stuff paper towel inside my shirts, under my arms, to combat the severe wetness I had! It's a *little* more expensive than regular deodorant/antiperspirant (I just went to Wal-Mart), but so completely worth it. Also, I did experience slight itching shortly after the application, but it was very mild. And I tend to have somewhat sensitive skin. If you're sick of gluing your arms to your sides to hide your shame, TRY THIS PRODUCT.