Phenoxyethanol
CAS: 122-99-6
Phenoxyethanol is a preservative used in cosmetics and personal care products. It is a biocide which is most active against Gram-negative bacteria. It is generally used in combination with other preservatives, in part because its activity is weak against yeast and mold.
Phenoxyethanol is stable up to 85°C (185°F) and has useful activity from pH 3 to 10. Phenoxyethanol is soluble in most oils. It is also soluble in water from 0.5 to 2.67 grams per 100 grams of water. It is miscible with propylene glycol and glycerin.
Phenoxyethanol is inactivated by highly ethoxylated compounds. In surfactant solution systems, the water must be saturated with Phenoxyethanol for activity. If the level is too low, it acts as a nutrient for bacteria.
Phenoxyethanol is used in the fragrance industry as a solvent and for its floral aroma. It is an excellent solvent for parabens and other preservatives.
To boost activity against yeast and mold, consider combining this preservative with Potassium Sorbate.
INCI: Phenoxyethanol
California Prop 65 Statement: The following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm.
Recommended use levels: 0.25 - 1%
Appearance: Clear liquid
Odor: Floral, rose note
