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The ingredient, explained

Tetrasodium Glutamate Diacetate

A published expert safety assessment covers the exact ingredient in the specified exposure context.

Chelating
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Ingredient guide

What it is and what it does

L-Aspartic Acid, N, N-bis-zarboxylatomethyl --L-glutamate; Tetrasodium N,N-bis-carboxylatomethyl--L-glutamate

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Chelating
Binds metal ions that can affect product stability or appearance.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Safety assessment

Panel judged tetrasodium glutamate diacetate safe in described cosmetic uses; beta-alanine diacetic acid had insufficient safety data.

What this does not tell us

Safety review with exposure bounds; conclusion cannot be transferred between the two chelators. No skin benefit efficacy trial.

Sources for this summary. PubMed 41104883 ↗

Research review checked Oct 1, 2026

Bounded review of local candidates, exact-name indexed primary journal/PubMed safety and topical searches; not a systematic review.

Ingredient research is not proof that a product containing this ingredient works.

Read the 1 selected study

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Products containing this ingredient

All 159 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

Registry identity

L-Aspartic Acid, N, N-bis-zarboxylatomethyl --L-glutamate; Tetrasodium N,N-bis-carboxylatomethyl--L-glutamate

INCI name on ingredient lists
TETRASODIUM GLUTAMATE DIACETATE
CAS registry number
51981-21-6
EC number
257-573-7

Sources for this ingredient record