“If you are really sweating through everything, you probably need to try Certain Dri which is the most effective over-the-counter antiperspirant available,” says Dr. Pierre. This roll-on product promises up to 72 hours of protection against excessive perspiration when applied before bed, thanks to the 12 percent aluminum chloride. And with over 2,000 five-star reviews on Amazon, users agree it lives up to the hype. “Before I used this product I was unbelievably skeptical,” admits one reviewer. “Fast forward maybe six years and it has changed my life. I literally NEVER have a drop of sweat!”

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