Tetrasodium EDTA
Tetrasodium EDTA is a chelating agent that binds trace metal ions to keep formulas stable and help preservatives work better. It has circulated online as a supposed "toxic" additive, but decades of safety review support its use at cosmetic concentrations.
A common online claim frames EDTA as a dangerous industrial chemical that is toxic to the body. In reality, CIR has repeatedly reviewed EDTA salts and found them safe as used in cosmetics, since they are used at low concentrations and are not meaningfully absorbed through skin.
Products with Tetrasodium EDTA
References
Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.