Did you know that water is really quite a good cleaner all by itself? One article indicates water alone gets hands 4 times cleaner than not washing – WOW! If that’s the case, then why do we need soap? It turns out soap makes water ‘wetter’ – or gives water the ability to dissolve dirt to get rinsed away.
The ingredients in soap that helps water work better are called surfactants; SURFace ACTive AgeNTS. There are complicated chemical processes that happen when soap is added to water. The water molecules have their surface tension reduced allowing water to work better, and the soap binds to the dirt. Then we rinse and the dirt goes away with the soap!