One in three people perspire heavily some up to 10 litres a day and many are so embarassed they resort to botox or laser therapies to stem the flow.
Perspiring's normal, but heavy sweating's a terrible problem millions of people suffer, making their lives hell.
Nurse, Patricia McLernon's suffered for 30 years, winter especially it was difficult in heated buildings.
“Every lunch time I had to come home and rinse out my uniform," Patricia said.
“I had to walk with my arms down and I had no confidence. It was horribly embarrassing. You know, you can hear people when they talk about you and you could see them pointing.”More stories from Today Tonight
Debra Connell, who worked in customer relations, developed heavy sweating when pregnant.
“It just makes you not want to go to work to stand in front of people. It looked like I was a slob. The staining, the wetness, it was just very embarrassing. I sweat when I'm nervous, sweat when I'm hot, when it is cold," Debra said.
David Aitken, running a handyman business, was always showering trying different deodorants but nothing worked for him.
“I was going through a heck of a lot of hot water so the expense in that was dramatic, the expense in the petrol was incredible as well because I'd be working across the other side of town and have to come back home to change," David said.
The Unilever plant in Leeds, Northern England, is dedicated to researching and developing just one product type - deodorants. Recently there's been a scientific breakthrough to keep those with a persiration problem dry and sweet on-the-nose all day.
Countless scientific trials and tests, not just in test tubes, but with real human beings, males and females, have been going on for 60 years at Unilever to solve wetness and bad odour.
After on-going testing and development for 5 years, Unilever's Rexona Clinical Protection is claimed to be the only anti-perspirant deodorant that works for heavy sweaters who don't have medical problems.
It is said to be two times more effective than a standard anti-perspirant, containing special ingredients that reduce sweating.
Anshika Grover, Senior Brand Manager, says the cream forms a gel plug on top of the sweat glands to reduce the flow of sweat.
It also has patented odour-fighting bubbles that burst to release fragrance and it is dermatologically proven to be gentle on the skin.
“I can go out with confidence and not worry about somebody staring at me and knowing that is the reason.” Said Debra
“It's totally changed my life I don't know what makes it work, all I know is it works," David said.
“My daughter was married and for the first time I was able to wear a very thin strap dress. And that was a magic day," Patricia said.
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