For years now I have always gotten a bit wet on the underarms. I would usually avoid light colored shirts.
Well I heard aboutthis Certain Dri stuff so I gave it a try. Well I used it during the day and such and it did nothing. Then a buddy of mine said that you're suppose to only use it before you goto bed. This is because your metabalism slows down or something and thats what makes the stuff effective.
Well the first time I used it at night was last week and it worked the very next day. I've been able to go all day and not a drop on sweat on the underarms.
For anyone that gets sweaty underarms I highly recommend this stuff. It has made my life so much easier and able to avoid embarashment.