Baby Safety / Compounds / Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator)

Is Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) safe for babies and kids?

Moderate risk for kids

Infants are more vulnerable to Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is tetrasodium edta (na4edta / edetate sodium / cosmetic chelator)?

The IUPAC name is 2-[bis(carboxymethyl)amino]acetic acid.

Also known as: NITRILOTRIACETIC ACID, 139-13-9, Triglycollamic acid, N,N-Bis(carboxymethyl)glycine.

IUPAC name
2-[bis(carboxymethyl)amino]acetic acid
CAS number
64-02-8
Molecular formula
C6H9NO6
Molecular weight
191.14 g/mol
SMILES
C(C(=O)O)N(CC(=O)O)CC(=O)O
PubChem CID
8758

Risk for babies

Moderate risk

Infants are more vulnerable to Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.

What to do: Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Regulatory consensus

3 regulatory and scientific bodies have classified Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator). The classifications differ — that's the data.

AgencyYearClassificationNotes
CIR—Safe as used in cosmetics (up to 0.5%)
EU—Permitted in cosmetics; no specific restriction
ECHA—H318 serious eye damage; H302 harmful if swallowed

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where kids encounter tetrasodium edta (na4edta / edetate sodium / cosmetic chelator)

  • Personal Care — shampoo, conditioner, body wash, facial cleanser, liquid hand soap
  • Cleaning Products — all-purpose cleaners, bathroom cleaners, laundry detergent
  • Cosmetics — foundation, mascara, eye cream, moisturizer
  • Industrial — CIP cleaning solutions, metal surface treatment

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator):

  • GLDA
    Trade-offs: Alternative chelating agent; stability constants for target metal ions differ; biodegradability varies (EDTA poorly biodegradable, citrate fully biodegradable); downstream water treatment impact should be assessed.
  • Sodium phytate
    Trade-offs: Consumer preference for 'natural' label; many natural fragrance compounds are potent allergens (limonene, linalool, eugenol); 'natural' ≠ 'safe'; often more expensive than synthetic equivalents.

Frequently asked questions

Is tetrasodium edta (na4edta / edetate sodium / cosmetic chelator) safe for kids?

Infants are more vulnerable to Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What products contain tetrasodium edta (na4edta / edetate sodium / cosmetic chelator)?

Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) appears in: shampoo (personal care); conditioner (personal care); all-purpose cleaners (cleaning products); bathroom cleaners (cleaning products); foundation (cosmetics).

What should I do if my child is exposed to tetrasodium edta (na4edta / edetate sodium / cosmetic chelator)?

Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Why do regulators disagree about tetrasodium edta (na4edta / edetate sodium / cosmetic chelator)?

Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) has been classified by 3 agencies including CIR, EU, ECHA, with differing conclusions. Regulators apply different standards of evidence (animal data weighting, exposure-pattern assumptions, epidemiological power thresholds), which is why two scientific bodies can review the same data and reach different conclusions. See the regulatory consensus table on this page for the full picture.

See Tetrasodium EDTA (Na4EDTA / Edetate sodium / cosmetic chelator) in the baby app

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Sources (1)
  1. — expert_curation

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →