EDTA (ethylenediaminetetraacetic acid) is a chelating agent used in skincare formulations to bind metal ions, improving product stability, preventing discoloration, and enhancing the efficacy of preservatives. It is typically used at low concentrations as a formulation aid rather than as a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Uncommon | Mild irritation possible, more likely at higher concentrations or on compromised skin. |
Allergic contact dermatitis | Rare | Documented in patch-test studies but considered a relatively weak sensitizer. |
Increased penetration of other ingredients | Uncommon | By disrupting the skin barrier slightly, it may enhance absorption of co-formulated substances. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.