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POLYSILICONE-21.

Valuable CAS 1013922-83-2 / VISCOSITY CONTROLLING

Polysilicone-21 is a precision-engineered silicone elastomer, originating as a complex powder through the reaction of Bis-Vinyldimethicone with Hydrogen Dimethicone. Its primary function in cosmetic formulations is to meticulously control viscosity, enhancing product texture and stability.

Viscosity Controlling

Science

As a silicone elastomer, Polysilicone-21 operates by modulating the rheological properties of a cosmetic product. It establishes a stable network within the formulation, thereby increasing its overall viscosity and ensuring a consistent and desirable application experience on the skin.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Consistent with other silicones, Polysilicone-21 demonstrates high chemical stability, making it resilient across a variety of formulation conditions.

Conflicts

  • Not suitable for use in fragrance applications.
  • Not suitable for use in flavor applications.

Safety

CIR Status
Safe as used
Sensitization risk Unknown

Polysilicone-21 is recognized as safe for cosmetic utilization. While comprehensive GHS classifications, hazard/precautionary statements, and detailed toxicity data (oral, dermal, inhalation) were not identified, it is noted for high bioaccumulation and persistence, yet remains within acceptable safety parameters for cosmetic integration.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Valuable

Polysilicone-21 is a valuable silicone elastomer, serving as an effective viscosity controlling agent in cosmetics to optimize product elegance and stability, and is considered safe for its intended use despite limited direct skin-specific efficacy data.


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