Benzyl Alcohol

INCI: Benzyl Alcohol | Function: Preservative, Solvent, Fragrance | Type: Aromatic alcohol

What Is Benzyl Alcohol?

Benzyl Alcohol is an aromatic alcohol found naturally in essential oils (jasmine, ylang-ylang) and fruits. In cosmetics, it functions as a preservative, solvent, and fragrance ingredient. It is effective against gram-positive bacteria and some fungi.

Key Skin Benefits

+ Multi-functional: preservative + solvent + fragrance
+ Naturally occurring in plants and essential oils
+ Effective at low concentrations
+ Good solvent for ingredients with poor water solubility

Pros

+ Naturally-derived option for clean beauty formulations
+ Low usage rate (typically 0.5-1%)
+ Widely approved globally
+ Works well in combination preservative systems

Cons

− EU designated fragrance allergen (must be declared above 0.001% in leave-on)
− Can cause sensitization in some individuals
− Moderate volatility — can evaporate during processing

Specifications

Property	Value
Usage Areas	Face, Body, Hair
Product Type	Leave-On, Rinse-Off
Source	Synthetic / Plant
Natural Level	Natural-derived

Safety Ratings

Metric	Rating
Skin Sensitivity	2/5 (low to moderate)
Comedogenic Rating	0/5
EWG Score	5/10

Regional Regulatory Limits

Region	Leave-on %	Rinse-off %	Status
EU (CosIng)	Max 1%	Max 1%	Allowed — Annex V; fragrance allergen
US (CIR/FDA)	Up to 5%	Up to 5%	Allowed — CIR safe as used
Japan (MHLW)	Max 1%	Max 1%	Allowed
ASEAN	Max 1%	Max 1%	Allowed — follows EU
China (NMPA)	Max 1%	Max 1%	Allowed

Typical Usage % by Product Type

Product Type	Typical %
As preservative	0.5 - 1%
As solvent	1 - 5%
As fragrance component	0.01 - 0.1%

References

CIR (2001) — Safety Assessment of Benzyl Alcohol, Benzoic Acid, and Sodium Benzoate. PMID: 11766131
EU CosIng — Annex V/34 preservative + Annex III allergen
EWG Skin Deep — Score 5/10

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