Xanthan Gum[2][5][6]

TL;DR. This ingredient is a water-phase thickener and rheology modifier that helps gels, lotions, and cleansers build viscosity, suspend particles, and keep emulsions more uniform. It is especially useful for shear-thinning textures that feel fluid during application but regain structure at rest.

What does Xanthan Gum[2][5][6] do in a cosmetic formula?

This ingredient is a water-phase thickener and rheology modifier that helps gels, lotions, and cleansers build viscosity, suspend particles, and keep emulsions more uniform. It is especially useful for shear-thinning textures that feel fluid during application but regain structure at rest.

Is Xanthan Gum[2][5][6] clean?

From a clean-beauty perspective, it is generally well tolerated, non-sensitizing for most users, and not a common restricted-list concern. The main formulation tradeoff is sensory, since higher levels can feel tacky or stringy.

Is Xanthan Gum[2][5][6] sustainable?

This material is made by microbial fermentation of carbohydrate feedstocks, often from corn, wheat, soy, or other plant-derived sugars. It is biodegradable and typically has a favorable environmental profile, with the main variables coming from crop sourcing and fermentation inputs.

Is Xanthan Gum[2][5][6] COSMOS-approved?

It is permitted under COSMOS-natural and COSMOS-organic when it meets the standard’s sourcing and processing requirements. It aligns well with Green Chemistry principles because it can come from renewable feedstocks, is water-processable, and breaks down more readily than persistent synthetic polymers.

How does Xanthan Gum[2][5][6] work chemically?

The molecule is a high-molecular-weight anionic heteropolysaccharide with a cellulose-like backbone and charged side groups, which gives strong water binding and viscosity at low concentrations. Typical use levels are about 0.1% to 1.0%, it is stable across a broad pH range around 3 to 12, and it hydrates best with good dispersion, often after pre-wetting in glycerin or adding under strong mixing.

Last updated 2026-05-15