Specimen No. 0031
CautionSyntheticpreservativesolvent
Benzyl Alcohol
benzyl alcohol · phenylmethanol · alpha-hydroxytoluene
Naturally occurring (in some botanicals) and also synthetically produced preservative and solvent. Safe at cosmetic concentrations for most adults, but not for newborns.
high confidence
Researched April 18, 2026Specimen 0031Benzyl Alcohol
Concerns
- Linked to gasping syndrome in neonates at high IV doses (benzyl alcohol-preserved saline)
- Skin sensitizer in some individuals
- Contact allergy more common in people with pre-existing eczema
- EU fragrance allergen — must be disclosed above 0.001% in leave-on products
Documented benefits
✓ naturally-sourced
Commonly found in
MoisturizerSerumHair careBaby products (avoid)Fragrance
Sources & references
Last researched: April 18, 2026
Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.
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