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Tetrasodium EDTA

Today's Chemical:

Tetrasodium EDTA

EWG Risk Score:


What is it?

Tetrasodium EDTA is a perservative and chelating agent. It is made by reacting ethylenediamine, formaldehyde and hydrogen or sodium cyanide. 

What are its risks?

  • Animal studies have found it to be cytotoxic (liver toxin), a genotoxic (toxic to DNA, possibly leading to mutations) through oral ingestion. It has not been found to be carcinogenic (Source)  
  • By itself it's not highly absorbable through the skin, but due to its chelation properties, it is able to increase the absorption of other chemicals present. (Source
  • Harmful if used in a spray application, as it may cause asthma or respiratory irritation. (Source


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