Xanthan gum is an extracellular microbial polysaccharide produced by the fermentation of sugar by Xanthomonas campestris, which can be put into use as emulsifiers, stabilizers, gel thickeners and so on. Xanthan gum has a hydrating and moisturizing effect on human skin. Xanthan gum is often used by people as a beauty product to separate water and milk.

Xanthan gum (Xanthangum), also known as Hansen's gum, is a microbial extracellular polysaccharide with a wide range of roles produced by Xanthomonas campestris (Xanthomnascampestris), a wild oleaginous bacterium, with carbohydrates as the main raw material (e.g., corn starch), through the fermentation project. It has unique rheological properties. Xanthan gum (English: Xanthangum, pronounced as San Xian Gum), commonly known as corn sugar gum, Hansen's gum, goat's gum, is a kind of sugar (glucose, sucrose, lactose), through the wild oleaginous Xanthomonas (English: Xanthomonascampestris).