Sodium EDTA is a chelating agent that binds metal ions in cosmetic formulations, improving product stability, preventing discoloration, and enhancing the efficacy of preservatives. It is used in low concentrations as a formulation aid rather than as a skin-treatment active.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Rare | Mild irritation possible, generally at higher concentrations. |
Contact dermatitis / allergic sensitization | Rare | Occasional reports of allergic contact dermatitis in sensitized individuals. |
Enhanced penetration of other ingredients | Uncommon | As a chelator it may slightly increase permeability, potentially amplifying irritation from other actives. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.