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LITHIUM MAGNESIUM SILICATE.

Valuable CAS 37220-90-9 / BINDING, BULKING, VISCOSITY CONTROLLING

Lithium Magnesium Silicate is an inorganic layered clay mineral primarily utilized as a sophisticated rheology modifier in cosmetic and skincare formulations. It significantly enhances product texture and stability by creating a robust, gel-like structure when dispersed in aqueous systems. This ingredient contributes to optimal formulation consistency and longevity.

Summary

Viscosity controlling agent Rheology modifier Suspending agent Bulking agent Absorbent Binding agent Emulsion stabilizer Texture enhancer

Science

Mechanism of Action

This inorganic layered clay mineral functions by dispersing readily in water, leveraging its inherent hydrophilicity and expandability to form a stable colloidal network. This network establishes a gel-like structure, effectively increasing viscosity in wet formulations and providing bulk in dry products. Through this mechanism, it stabilizes emulsions, maintains uniform distribution of components, and minimizes sedimentation and phase separation, while also capable of forming a thin, continuous film on the skin's surface.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.4%
Red flag below
0.4%

For naturally-sourced silicate ingredients, particularly when incorporated into spray formulations such as face and neck sprays, there is a potential for incidental inhalation. The maximum reported use concentration in these specific products is 0.4%. Therefore, formulations containing these solids must be carefully designed to minimize any airborne particles and mitigate inhalation risk.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Exhibits excellent hydrophilicity and expandability, readily dispersing in water to establish a stable gel-like structure. This forms a firm multi-molecular spatial network, providing reliable thickening, thixotropic properties, and anti-settling effects. It is instrumental in stabilizing emulsions, preventing component sedimentation, and reducing phase separation for enhanced product longevity and performance.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.4%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Lithium Magnesium Silicate is safe when used in cosmetic formulations that are designed to be non-irritating. However, a specific caution applies to naturally-sourced silicates in spray products, where data on incidental inhalation is insufficient; such formulations should be optimized to minimize inhalation exposure.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Lithium Magnesium Silicate is a valuable cosmetic ingredient that significantly enhances product texture, stability, and overall aesthetics through its rheology-modifying properties, exhibiting low irritation and comedogenicity risks.

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