The Beauty Signal
Intelligence · Ingredients

The ingredient narratives reshaping clean beauty.

preservative
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Phenethyl Alcohol

aka phenylethanol · 2-phenylethanol · beta-phenylethyl alcohol · rose fragrance alcohol

A naturally occurring fragrance-active alcohol with preservative function. Found in rose essential oil — its natural occurrence supports clean-beauty positioning. Dual role as rose-floral fragrance note and antimicrobial component.

Benefits
  • Antimicrobial preservative — effective against bacteria and fungi
  • Natural rose-floral fragrance note
  • Accepted in COSMOS-certified formulations
  • Solubiliser for fragrance components
  • Mild humectant at higher concentrations
Example uses
  • Vegan mascaras
  • Natural COSMOS-certified products
  • Floral fragrance-positioned skincare
  • Eye formulas
  • Lip products
Formulation notes

Effective pH 4–8. The fragrance note must be considered in the total fragrance system. Functions synergistically with other mild preservatives at sub-MIC concentrations.

Watchouts

EU fragrance allergen consideration applies — phenethyl alcohol contributes to total fragrance allergen load. At high concentrations, the fragrance note may be overpowering. Sensitisation risk is low but not absent.

Clean beauty perception

Accepted in COSMOS-certified natural cosmetics. The natural occurrence in rose oil strengthens clean-beauty narrative.