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)