What is a Benzoin Gum Powder? The sap (gum resin) that comes from cuts in the trunks of Styrax family trees is called benzoin. On the skin, benzoin is used to treat ulcers, bed sores (pressure ulcers), broken skin, and many other problems, but there is no good scientific evidence to back these uses. A small amount of benzoin is used to add flavor to food. Benzoin Gum Powder benefits: ◉ Skin Health. ◉ Emotional Balance. ◉ Respiratory Health. ◉ Digestive Health. Buy it from the natural health food store - Alive Herbals.