ETIDRONIC ACID is graded B (Low Concern) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.

ETIDRONIC ACID

Safety grade: B

Etidronic acid is a synthetic compound that acts like a magnet for metal ions and minerals in cosmetic products. It prevents these metals from causing unwanted reactions that could damage the product or reduce its effectiveness.

This chelating agent binds to trace metals and minerals in cosmetic formulations, preventing them from triggering oxidation or degradation that would compromise product stability and shelf life.

Graded using: COSING, FDA.

Last verified: May 26, 2026

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