Is Iron oxide safe for babies and kids?
High risk for kidsInfants are more vulnerable to Iron oxide 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 iron oxide?
The IUPAC name is oxo(oxoferriooxy)iron.
Also known as: oxo(oxoferriooxy)iron, Iron trioxide, Iron oxide, red, iron(3+) oxide.
- IUPAC name
- oxo(oxoferriooxy)iron
- CAS number
- 1309-37-1
- Molecular formula
- Fe2O3
- Molecular weight
- 159.69 g/mol
- SMILES
- O=[Fe]O[Fe]=O
- PubChem CID
- 518696
Risk for babies
High riskInfants are more vulnerable to Iron oxide 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.
Risk for pregnant and nursing people
Context-dependentPregnancy alters the metabolism and distribution of Iron oxide, potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.
No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.
Regulatory consensus
3 regulatory and scientific bodies have classified Iron oxide. The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| EPA CTX / IARC | — | Group 3 - Not classifiable as to its carcinogenicity to humans | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: None, 2 positive / 0 negative reports) | |
| EPA CTX / Genetox | — | Genotoxicity: positive (Ames: None, 2 positive / 0 negative reports) |
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 iron oxide
- Industrial Facilities — Manufacturing plants, Waste treatment sites
- Occupational Environments — Factories, Warehouses
- Consumer Products — food products, candy, beverages, cosmetics, supplements
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Iron oxide:
-
Process controls to minimize degradant formation
Trade-offs: Additional manufacturing costRelative cost: 1.2-2×
Frequently asked questions
Is iron oxide safe for kids?
Infants are more vulnerable to Iron oxide 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 iron oxide?
Iron oxide appears in: Manufacturing plants (Industrial facilities); Waste treatment sites (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments); food products (Consumer products).
What should I do if my child is exposed to iron oxide?
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 iron oxide?
Iron oxide has been classified by 3 agencies including EPA CTX / IARC, EPA CTX / Genetox, EPA CTX / Genetox, 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 Iron oxide in the baby app
Look up products containing iron oxide, compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (3)
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 →