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There is no proof that a particular kind of soap kills the most germs. According to a Science Daily report (refer to the link, below), washing one's hands using ordinary bar soap and plain water for 10 seconds was more than adequate to kill germs.

Foamy soap is in essence the same as liquid soap, lye (NaOH) and fatty acids. The foaminess just increases the available surface area that this compound can interact with other surfaces, like your hand. This increases the efficiency of soap quantity used as well as the efficiency of micelles produced, AKA the amount of grime cleaned up.

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14y ago
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Q: Why does foamy soap kill the most germs?
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