Cellulose gum is a natural, plant-derived ingredient that is most often used as a thickener, but is also used as a film-forming agent. Cellulose gum's versatility makes it a valuable addition to many types of water-based formulas, as it also helps control viscosity to improve product dispensing.
In addition, cellulose gum plays a role in the stabilization of water-based emulsions.
This ingredient has been deemed safe for use in cosmetics by the Cosmetic Ingredient Review panel. Cellulose gum is also a food-grade ingredient, further attesting to its safety. Usage levels in cosmetics and oral care products such as toothpaste range from 0.0002-20%. https://www.paulaschoice.com/ingredient-dictionary/ingredient-cellulose-gum.html?q=Cellulose%20Gum&fdid=ingredients