I was suffering from hyperhidrosis (excessive sweating under my arms, on my back and I also had sweaty palms and feet) since puberty. I've tried a lot of remedies including several antiperspirants. They worked for me, no doubt, but I always got this stinging reaction of the skin, itching and reddened skin. A few month ago I ordered a new Swiss-made antiperspirant called AHC20 sensitive. It helped to reduce my sweating (armpits and back) and the effect was lasting for 3 full days, no matter how much degrees were outside. By that, I only got to use it twice a week! Best thing, as mentioned above, was, that those dermal irritations never occured. I would recommend this product if you got sensitive skin, especially for women and younger teenagers.