Research in Cosmetics suggests ester propanediol caprylate can influence bacterial flora toward a healthier scalp microbiome and reduce dandruff. An ester is a chemical substance made when an acid and an alcohol combine and water is removed. The study’s authors explain that the “synergistic effects” of using propanediol caprylate in different combinations allow reductions in the concentration of conventional anti-dandruff agents and preservatives.
