Xanthan Gum

Xanthan Gum

INCI Name: Xanthan Gum
CAS Numbers: 11138-66-2


Xanthan Gum is a polysaccharide secreted by the bacterium Xanthomonas campestris. It is produced by the fermentation of glucose, sucrose, or lactose. After a fermentation period, the polysaccharide is precipitated from a growth medium with isopropyl alcohol, dried, and ground into a fine powder. Lastly, it is added to a liquid medium to form the gum. Xanthan Gum is used as a food additive and rheology modifier which is commonly used as a food thickening agent in salad dressings.


In cosmetics, Xanthan Gum is used to prepare water gels, usually in conjunction with bentonite clays. Xanthan Gum is also used in oil-in-water emulsions to help stabilize the oil droplets against coalescence. Xanthan Gum has some skin hydrating properties. Xanthan Gum is also a stabilizer in cosmetic products which is used to prevent ingredients from separating.


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