How Perspirex is effective against excessive sweating 

Perspirex offers 65% sweat reduction for at least 72 hours 

Internationally recognised classification for antiperspirants (the American FDA) states that :

• for a product to be categorised as an ‘antiperspirant’ it must achieve a 20% sweat reduction.
• If an antiperspirant demonstrates a 30% sweat reduction it may be classified as ‘Extra effective’.
• The patented formula of Perspirex demonstrates 65% sweat reduction for at least 72 hours after each application*. 

The reason other antiperspirants are sweating (and you wont be)

 Perspirex works so effectively thanks to its alcoholbased, aluminium chloride and lactate solution. This reacts with the water in your sweat gland,  forming a kind of plug that seals the sweat glands temporarily halting sweat production. And unlike water-based antiperspirants that quickly cease to be effective, the Perspirex formulation ensures it keeps on working.  The plug is naturally dispelled over the course of a few days with the natural shedding of dead skin cells. 

* Tests performed by an internationally recognised test institute, independent of Riemann.