The Ivory soap bar (classic) had contained: sodium tallowate, sodium cocoate or sodium palm kernelate, water, sodium chloride, sodium silicate, magnesium sulfate, and fragrance. The soap bar had a determined pH value: 9.5.
New varieties of Ivory soap contain altered ingredients, such as in "Simply Ivory" (or "simplement ivory"): sodium tallowate and/or sodium palmate, water, sodium cocoate or sodium palm kernelate, glycerin, sodium chloride, fragrance, one or more of the following: coconut acid, palm kernel acid, tallow acid or palm acid, and tetrasodium EDTA.
EDTA -The compound was first described in 1935 by Ferdinand Munz, who prepared the compound from ethylenediamine and chloroacetic acid. Today, EDTA is mainly synthesised from ethylenediamine (1,2-diaminoethane), formaldehyde, and sodium cyanide. This route yields the sodium salt, which can be converted in a subsequent step into the acid forms:
_____________________________________________So, now you tell me how THAT (the above) determins that you are clean? as opposed to just using water?