Chelating Agent

Sodium Diethylenetriamine Pentamethylene Phosphonate

INCI: SODIUM DIETHYLENETRIAMINE PENTAMETHYLENE PHOSPHONATE

Reviewed by Daisy · Last updated 18 Aug 2026

What Is Sodium Diethylenetriamine Pentamethylene Phosphonate?

Sodium Diethylenetriamine Pentamethylene Phosphonate (INCI: SODIUM DIETHYLENETRIAMINE PENTAMETHYLENE PHOSPHONATE) is a cosmetic ingredient listed in the EU CosIng inventory. [[(Phosphonomethyl)imino]bis[(ethylenenitrilo)bis(methylene)]]tetrakisphosphonic acid, sodium salt.

Its declared cosmetic function is chelating.

Source: European Commission CosIng inventory.

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