Baby Safety / Compounds / Urea-formaldehyde (UF) resin

Is Urea-formaldehyde (UF) resin safe for babies and kids?

Very high risk for kids

Infants are more vulnerable to Urea-formaldehyde (UF) resin 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 urea-formaldehyde (uf) resin?

Also known as: Formaldehyde, polymer with benzenamine.

CAS number
25214-70-4
Molecular formula
C2H6N2O2
Molecular weight
90.08 g/mol
SMILES
C=O.C(=O)(N)N
PubChem CID
62705

Risk for babies

Very high risk

Infants are more vulnerable to Urea-formaldehyde (UF) resin 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.

Risk for pregnant and nursing people

Moderate risk

Reproductive/developmental concern via formaldehyde; limited human data but animal evidence of developmental effects.

Regulatory consensus

2 regulatory and scientific bodies have classified Urea-formaldehyde (UF) resin. The classifications differ — that's the data.

AgencyYearClassificationNotes
IARC2012Group 2B (possibly carcinogenic) — as formaldehyde-releasing resinCarcinogenicity via formaldehyde release; Monograph 100F
US EPA2010Likely to be carcinogenicFormaldehyde component; inhalation route

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 urea-formaldehyde (uf) resin

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles
  • Consumer Products — dietary supplements, fortified foods, energy drinks

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Urea-formaldehyde (UF) resin:

  • Methylene diphenyl diisocyanate (MDI) resin
    Trade-offs: No formaldehyde emissions once cured. Higher cost (30-50% more). Better moisture resistance. Used in OSB, particleboard. Requires different manufacturing equipment.
    Relative cost: 1.2-2×
  • Soy-based adhesives (PureBond, Columbia Forest Products)
    Trade-offs: Zero formaldehyde. NAUF (no added urea-formaldehyde) certified. Adequate bond strength for interior plywood. Not suitable for exterior/structural. Premium pricing.
    Relative cost: 1.2-2×
  • Phenol-formaldehyde (PF) resin
    Trade-offs: Much lower formaldehyde emissions than UF (PF is thermosetting — cured resin emits far less). Better moisture resistance. Darker color (not suitable for light wood). Standard for exterior plywood.
    Relative cost: 1.2-2×

Frequently asked questions

Is urea-formaldehyde (uf) resin safe for kids?

Infants are more vulnerable to Urea-formaldehyde (UF) resin 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 urea-formaldehyde (uf) resin?

Urea-formaldehyde (UF) resin appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments); dietary supplements (Consumer products).

What should I do if my child is exposed to urea-formaldehyde (uf) resin?

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.

See Urea-formaldehyde (UF) resin in the baby app

Look up products containing urea-formaldehyde (uf) resin, compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (3)
  1. IARC Monographs Volume 100F: Formaldehyde (2012) — regulatory
  2. US EPA IRIS Assessment: Formaldehyde (draft) (2010) — regulatory
  3. NIOSH Pocket Guide to Chemical Hazards: Formaldehyde (2023) — regulatory

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 →