Baby Safety / Compounds / Cinnamaldehyde

Is Cinnamaldehyde safe for babies and kids?

High risk for kids

Infants are more vulnerable to Cinnamaldehyde 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 cinnamaldehyde?

The IUPAC name is (E)-3-phenylprop-2-enal.

Also known as: (E)-3-phenylprop-2-enal, 3-Phenylacrylaldehyde, Zimtaldehyde, Cinnamal.

IUPAC name
(E)-3-phenylprop-2-enal
CAS number
104-55-2
Molecular formula
C9H8O
Molecular weight
132.16 g/mol
SMILES
O=CC=CC1=CC=CC=C1
PubChem CID
637511

Risk for babies

High risk

Infants are more vulnerable to Cinnamaldehyde 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

Context-dependent

Prenatal exposure to Cinnamaldehyde through personal care products may affect fetal development. Some fragrance chemicals are sensitizers or endocrine-active compounds with transplacental transfer.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

1 regulatory bodyhas classified Cinnamaldehyde.

AgencyYearClassificationNotes
EPA CTX / Genetox—Genotoxicity: positive (Ames: positive, 59 positive / 13 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 cinnamaldehyde

  • Consumer Products — Cinnamon flavoring, E-cigarette liquids, Cosmetics, Fragrances
  • Fragrance — perfume, cologne, scented personal care products, household fragrance products, candles
    Identified in Fragrance Ingredient Safety Priority Research database (2,325 ingredients)

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Cinnamaldehyde:

  • Fragrance-free formulations
    Trade-offs: Consumer preference for scented products
    Relative cost: Lower (ingredient elimination)
  • Essential oil-based fragrances (with disclosure)
    Trade-offs: Natural does not mean safe — many essential oils are skin sensitizers
    Relative cost: 2-5× conventional
  • Alpha-methylcinnamaldehyde (lower sensitization)
    Relative cost: 1.2-2×
  • Cassia oil (with limits)
    Relative cost: 1.2-2×

Frequently asked questions

Is cinnamaldehyde safe for kids?

Infants are more vulnerable to Cinnamaldehyde 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 cinnamaldehyde?

Cinnamaldehyde appears in: Cinnamon flavoring (Consumer products); E-cigarette liquids (Consumer products); perfume (Fragrance); cologne (Fragrance).

What should I do if my child is exposed to cinnamaldehyde?

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 Cinnamaldehyde in the baby app

Look up products containing cinnamaldehyde, compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (3)
  1. PubChem Compound CID 637511 — database
  2. EPA CompTox Chemicals Dashboard — DTXSID1024835 — epa
  3. ATSDR Toxicological Profile — CAS 104-55-2 — reference

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 →