Effects of 1,3‐propanediol associated, or not, with butylene glycol and/or glycerol on skin hydration and skin barrier function

Abstract

The humectants significantly improved skin hydration and reduced TEWL throughout the 8-h time course. The increase in 1,3-propanediol concentration, as well as its combination with glycerol, provided a greater benefit to the skin, improving both hydration and the skin barrier function.