Science
Mechanism of Action
It functions by disrupting microbial cell membranes and interfering with enzymatic systems, effectively preventing contamination by both Gram-negative and Gram-positive bacteria, as well as yeasts. Its impact on the skin's natural microbial balance is minimal.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 The SCCS (2016) concluded phenoxyethanol is safe and effective as a preservative at concentrations up to 1% for all consumer groups, including children of all ages.
- 02 A study noted 2% phenoxyethanol was well-tolerated when used as a disinfectant on premature neonatal skin, though other research involving unspecified concentrations showed some irritation in extremely low birth weight infants.
Transparency
Dusting Analysis
As a preservative, phenoxyethanol is effective within its allowed concentration range, typically up to 1%. Utilizing it below effective levels may compromise product stability, while exceeding regulatory maximums raises safety concerns, particularly for sensitive demographics.
The Formula
Formulation
Stability
Phenoxyethanol is stable up to 85°C (185°F). It is soluble in most oils, alcohols, and glycols, and dispersible/soluble in water (from 0.5 to 2.67 grams per 100 grams of water). Optimal incorporation is typically during the cool-down phase of formulation, below 40°C.
Synergies
- Ethylhexylglycerin (enhances efficacy, particularly against yeast and mold)
Conflicts
- Highly ethoxylated compounds (can inactivate phenoxyethanol)
- Mixtures with parabens (may increase the risk of more severe allergic reactions in some cases)
Safety
Safety Profile
The CIR Expert Panel and SCCS deem phenoxyethanol safe for topical use up to 1% for all ages. However, the FDA warned against its ingestion by breastfeeding infants due to potential central nervous system depression, vomiting, and diarrhea. The French ANSM advises against its use in products for the nappy area for children under three and suggests a 0.4% limit for other products for this age group, though the SCCS maintains its 1% safety assessment.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Phenoxyethanol is a highly effective and widely accepted broad-spectrum preservative, vital for product safety and stability when formulated within its established regulatory limits.
Related
Similar Ingredients
Finding similar ingredients…