Science
Mechanism of Action
As an anionic, high molecular weight polysaccharide, xanthan gum forms a gel-like matrix that modifies viscosity and stabilizes emulsions, ensuring uniform ingredient distribution. Its shear-thinning properties allow for easy application, while on skin, it acts as a humectant and forms a moisture-retaining barrier.
Research
Clinical Evidence
High confidence0.5%
Key findings
- 01 cite: 1
- 02 cite: 3
- 03 cite: 15
- 04 cite: 12
- 05 cite: 14
- 06 cite: 5
- 07 cite: 2
Transparency
Dusting Analysis
Xanthan gum is a fundamental functional ingredient primarily used for thickening and stabilizing formulations, rather than being misrepresented for active benefits. Its role is integral to product texture and stability.
The Formula
Formulation
Stability
Xanthan gum solutions maintain stability across a wide pH range (3-11) and temperatures up to 80°C, exhibiting pseudoplastic behavior where viscosity decreases with shear and increases at rest.
Conflicts
- Cationic raw materials (e.g., cationic surfactants, polymers, or preservatives) can cause precipitation.
- Some surfactants, such as sodium lauryl sulfate (SLS), can reduce its effectiveness and cause clumping or gel formation.
- High concentrations of salts, like sodium chloride, may cause it to gel or clump together.
Safety
Safety Profile
The CIR Expert Panel deems xanthan gum safe as used, noting its low irritancy and non-sensitizing nature at typical concentrations (0.1-2%). Its safety in cosmetic use is well-established, supported by FDA GRAS status, despite one high concentration rabbit test finding irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Xanthan gum is an essential multi-functional ingredient, crucial for product stability, texture enhancement, and providing vital skin hydration without irritation.
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