Benzyl Alcohol
Aromatic alcohol that works as a mild preservative and solvent. Listed among the 26 EU fragrance allergens and requires separate label declaration.
Evidence by route
Topical application
Broad-spectrum preservative. Safe at concentrations up to 1% per EU regulation. As a fragrance allergen, it appears on the label starting at 0.001% in leave-on cosmetics.
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Medium
- Allergen risk
- Moderate
- Pregnancy
- Caution
- Suitable for
- Oily, Combination, Normal
- Use with caution
- Sensitive
For sensitive skin
Sensitive skin may react when several products with benzyl alcohol are used together.
About this ingredient
Benzyl Alcohol is an aromatic alcohol, a natural component of jasmine, ylang-ylang essential oils, and benzoin gum. In cosmetics and pharmaceuticals it is used as a solvent, a mild preservative, and a fragrance component. Mechanism. At 0.5–1% it inhibits growth of gram-positive and gram-negative bacteria, yeasts, and moulds by disrupting cell membranes. Often paired with phenoxyethanol, dehydroacetate, and sorbic acid to widen preservation spectrum. As a solvent it helps incorporate poorly soluble actives into the formula. Where applied. Shampoos, shower gels, lotions, face and body creams, fragrances, prescription ointments, injectable formulations as a preservative. Cosmetic concentration 0.5–1%; EU Cosmetics Regulation Annex V cap is 1%. In Spain part of La Roche-Posay, Avène, ISDIN, Mustela, Sesderma. Safety. CIR and SCCS confirm cosmetic safety. Listed among the EU's 26 mandatory fragrance allergens – at over 0.001% in leave-on and 0.01% in rinse-off, label declaration is required. Allergic contact reactions in 1–2% of patients with eczema and atopic dermatitis. In newborns, systemic use (injections) at high doses has caused 'gasping syndrome' – not relevant to topical cosmetics. Pregnancy – use with caution. Topically at cosmetic concentrations systemic absorption is minimal and the risk is purely theoretical. AEMPS and SEGO do not ban it, but pregnant patients with a fragrance-allergy history should pick products without benzyl alcohol. No restrictions during lactation. Functional role. An adjunct preservative and solvent, not a cosmetic active. No standalone skin benefit.
Frequently asked questions
Is Benzyl Alcohol safe during pregnancy?
Benzyl Alcohol should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
What skin types is Benzyl Alcohol for?
Benzyl Alcohol suits: oily, combination, normal. Use with caution in: sensitive.
Can Benzyl Alcohol irritate the skin?
Benzyl Alcohol has moderate irritation potential. Sensitive skin may show a transient reaction that usually settles with adaptation.
What is Benzyl Alcohol and what does it do in cosmetics?
Aromatic alcohol that works as a mild preservative and solvent.
What's the INCI name for Benzyl Alcohol?
The INCI name is Benzyl Alcohol.
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