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Is butylene glycol safe during pregnancy?

Reviewed by · Last reviewed

Pregnancy-Safe Ingredients Database — 28,000+ Ingredients Rated
butylene glycol
NO KNOWN RISKS
93
/100
0

Pregnancy-safe products containing butylene glycol

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Authoritative references used to score this ingredient.

Frequently asked questions

Is butylene glycol safe during pregnancy?
Butylene glycol (1,3-butanediol isomer commonly used) has been assessed by CIR as safe as used in cosmetics and there is no harmonised CLP reproductive classification (no H360/H361) or credible human teratogenic evidence; animal and human reproductive studies do not indicate reproductive hazard. Topical use gives low but measurable systemic exposure (solvent/humectant properties), so exposure is scored as low (1). Sources: CIR safety assessment, ECHA Annex VI (no harmonised reproductive classification), PubChem, PubMed literature.
Is butylene glycol safe while breastfeeding?
No evidence of reproductive or lactation-specific toxicity or mechanistic endocrine activity; no harmonised classification. Topical use can result in low systemic absorption and thus low potential for transfer into breastmilk, so exposure scored as low (1). Sources: CIR, PubMed, ECHA registration dossiers, PubChem.
Is butylene glycol safe for baby skin?
No data indicating developmental or infant-specific reproductive hazard; CIR and regulatory sources state safe as used and no harmonised flags. Because infant skin has higher permeability and surface-area-to-weight ratio, dermal exposure is increased relative to adults; given measurable absorption in adults, exposure for baby skin is increased by +1 (adult 1 → infant 2). Sources: CIR, PubMed, CosIng, ECHA registration information.
How does VeriMom score butylene glycol?
VeriMom scores butylene glycol at 93/100 (no known risks) based on EU CosIng status, ECHA hazard classifications, and peer-reviewed PubMed studies. Our scoring pipeline is fully transparent.
What are pregnancy-safe alternatives to butylene glycol?
See our curated list of pregnancy-safe alternatives to butylene glycol based on similar function and a no-known-risks safety band.

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Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice. Safety scores are based on publicly available data and may not reflect all risks. Always consult your healthcare provider before using any product during pregnancy or breastfeeding.

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