Phenoxyethanol is a broad-spectrum preservative widely used in cosmetics to prevent microbial growth. It is effective against gram-negative and gram-positive bacteria, yeast, and mold. Often combined with other preservatives like ethylhexylglycerin for synergistic effect.
Key Skin Benefits
+ Broad-spectrum antimicrobial protection
+ Effective at low concentrations (typically 0.5-1%)
+ Stable across wide pH range (3-10)
+ Compatible with most formulation types
Pros
+ Globally approved and widely used since 1950s
+ Low sensitization potential compared to formaldehyde-releasers
+ No known endocrine disruption
+ Works in both leave-on and rinse-off products
Cons
− EU restricted to max 1% in leave-on cosmetics
− Can cause mild irritation at high concentrations
− Some consumer concern as a 'paraben alternative'
− Potential nervous system effects at very high oral doses (not relevant for topical use)
Specifications
Property
Value
Usage Areas
Face, Eye, Body, Hair
Product Type
Leave-On, Rinse-Off
Source
Synthetic
Natural Level
Synthetic
Safety Ratings
Metric
Rating
Skin Sensitivity
2/5 (low)
Comedogenic Rating
0/5
EWG Score
4/10
Regional Regulatory Limits
Region
Leave-on %
Rinse-off %
Status
EU (CosIng)
Max 1%
Max 1%
Allowed — max 1%
US (CIR/FDA)
Up to 1%
Up to 1%
Allowed — CIR safe as used
Japan (MHLW)
Max 1%
Max 1%
Allowed — max 1%
ASEAN
Max 1%
Max 1%
Allowed — follows EU
China (NMPA)
Max 1%
Max 1%
Allowed — max 1%
Typical Usage % by Product Type
Product Type
Typical %
Cream / Lotion
0.5 - 1%
Serum
0.5 - 1%
Shampoo / Body Wash
0.5 - 1%
Toner / Mist
0.3 - 0.8%
References
CIR (2010) — Safety Assessment of Phenoxyethanol. PMID: 20666809
EU CosIng — Phenoxyethanol, Annex V/29 preservative