Tetrasodium Edta
Ingredient Info
Tetrasodium EDTA is a chelating agent that binds to metals and minerals in skincare formulas. It helps preserve product stability, prevent discoloration, and can enhance the penetration of other active ingredients into the skin.
Benefits
- Stabilizes formulations by binding unwanted metals and minerals
- Helps prevent oxidation and extends product shelf life
- May enhance penetration of other skincare actives
Potential concerns
- May increase skin penetration of other ingredients—formulators must ensure all combined ingredients are safe for absorption
- Not absorbed through skin in typical use, but inhalation from sprays should be minimized
- Used at very low concentrations (typically under 2%) to minimize any systemic exposure
Science: The Cosmetic Ingredient Review Expert Panel confirmed EDTA salts are safe in cosmetic use at current concentrations (2023). Skin absorption is negligible, though the ingredient can affect how readily other chemicals penetrate the skin due to its chelating properties.
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