Baby Safety / Compounds / Cinnamyl alcohol

Is Cinnamyl alcohol safe for babies and kids?

Elevated risk for kids

Infants are more vulnerable to Cinnamyl alcohol 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 cinnamyl alcohol?

The IUPAC name is (E)-3-phenylprop-2-en-1-ol.

Also known as: (E)-3-phenylprop-2-en-1-ol, 3-PHENYL-2-PROPEN-1-OL, cinnamic alcohol, (E)-cinnamyl alcohol.

IUPAC name
(E)-3-phenylprop-2-en-1-ol
CAS number
104-54-1
Molecular formula
C9H10O
Molecular weight
134.17 g/mol
SMILES
C1=CC=C(C=C1)C=CCO
PubChem CID
5315892

Risk for babies

Elevated risk

Infants are more vulnerable to Cinnamyl alcohol 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 Cinnamyl alcohol 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

2 regulatory and scientific bodies have classified Cinnamyl alcohol. The classifications differ — that's the data.

AgencyYearClassificationNotes
IFRA2020restrictionIFRA restriction — strong sensitizer
EU_COSMETICS2009allergen_disclosureEU Annex III original 26 allergens

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 cinnamyl alcohol

  • Personal Care — perfume, soap, lotion, shampoo
  • Consumer Products — cleaning products, air fresheners
  • 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 Cinnamyl alcohol:

  • Phenylethyl alcohol (rose)
    Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.
    Relative cost: 1.2-2×
  • Benzyl alcohol
    Trade-offs: Alternative fragrance ingredient; individual safety profile should be assessed per IFRA standards; sensitization potential varies by compound; patch testing recommended for sensitive individuals.
    Relative cost: 1.2-2×

Frequently asked questions

Is cinnamyl alcohol safe for kids?

Infants are more vulnerable to Cinnamyl alcohol 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 cinnamyl alcohol?

Cinnamyl alcohol appears in: perfume (Personal care); soap (Personal care); cleaning products (Consumer products); air fresheners (Consumer products); perfume (Fragrance).

What should I do if my child is exposed to cinnamyl alcohol?

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 Cinnamyl alcohol in the baby app

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

Open in baby View raw API data

Sources (1)
  1. PubChem Compound Database (2026) — database

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 →