Deodorants are products which are applied topically to mask the smell of body odour at the site where it is applied. Most manufacturers claim that their products effectively deodorise all day long. Yet if you suffer from excessive sweating (hyperhidrosis), you, like me will have found that those mass-market deodorants do not deodorise "all day long".

Deodorants are not designed to reduce sweating - you need an antiperspirant to stop sweating