Phenoxyethanol, Sorbic Acid

This liquid preservative blend combines phenoxyethanol (a glycol ether) with sorbic acid (an unsaturated fatty acid) to create a broad-spectrum antimicrobial system effective against both bacteria and fungi. The combination is particularly valued because it allows for lower use concentrations of each component while maintaining efficacy, and the blend works synergistically across a wider pH range than either preservative alone. Formulators choose this pairing for its excellent safety profile, global regulatory acceptance, and effectiveness in natural and conventional formulations, though it performs best in slightly acidic to neutral pH systems.