Though many of the propellants used are ozone-friendly these days, there are several other reasons why these sprays could be harmful, especially to our health
Aerosol sprays nowadays do not contain ozone depleting chemicals known as chlorofluorocarbons (CFCS). Today the propellants used in aerosol sprays are usually hydrocarbons – butanes, isobutanes, propane and others and compressed gases like nitrous oxide that do not deplete the ozone layer. However, hydrocarbon-based aerosols emit Volatile Organic Compounds (VOCs) that contribute to ground level ozone levels, a key component of asthma-inducing smog.
As far as body safety is concerned, most deodorants contain potentially harmful ingredients such as triclosan and propylene glycol which is a humectant (keeps substances from drying out) and aluminium (aluminium, usually aluminium chlorohydrate, is sure to be present if the deodorant contains an antiperspirant which works by blocking a person’s sweat glands and eliminating odours) Some of these ingredients could be dangerous even in the small concentrations used in spraying. Studies are going on. In the meantime, if you have to use deodorants, use them cautiously, and sparingly.
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