Deodorants or Antiperspirants?
Normally our body temperature is in balance - i.e. the heat entering the body is the same as the heat going out. However, if heat input increases then this balances shifts and we become hot. To re-establish the heat equilibrium our body needs to increase heat output - this is achieved by sweating. Sweating can also occur in emotional situations when a person becomes nervous or embarrassed.
Antiperspirants reduce sweating by controlling the flow of underarm sweat and mask body odour. Deodorants, on the other hand, prevent odour by using perfume and by reducing the levels of underarm bacteria. However, they do not stop sweating.