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Smelling salts are a chemical compound that releases small amounts of ammonia gas, which essentially jump starts your bodyâs nervous system. The ammonia causes blood vessels in your nasal passages to expand providing an instant increase in oxygen to your brain meaning an instantaneous boost of alertness and power.
How Smelling Salts Work. Smelling salts mostly work by combining the bicarbonate ammonium salt with water which causes the salt to quickly degrade into carbon dioxide and ammonia gas. That ammonia gas is what does the physiological âkick in the pantsâ for our powerlifting friends, quarterbacks, and such.