Phenoxyethanol

Function: Broad-spectrum preservative.

Benefits: Prevents microbial growth, extends shelf life, and ensures product safety.

Source: Synthetic (though trace amounts exist naturally in green tea).

Considerations: Safe at low concentrations (up to 1%); can cause mild irritation in very sensitive skin.

Science Says: https://pubmed.ncbi.nlm.nih.gov/31588615/