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STYRENE/ACRYLATES/DIMETHICONE ACRYLATE CROSSPOLYMER.

Valuable / SKIN CONDITIONING

Styrene/Acrylates/Dimethicone Acrylate Crosspolymer is a silicone elastomer recognized for its multi-functional skin conditioning and film-forming properties. It creates a breathable, protective barrier, improving moisture retention and skin texture while offering a mattifying effect by absorbing excess sebum. This ingredient also enhances product aesthetics and longevity across various cosmetic applications.

Summary

Skin Conditioning Film Forming Absorbent Emollient Viscosity Increasing Slip Modifier Bulking Agent

Science

Mechanism of Action

This ingredient functions by forming a soft, breathable, and protective film on the skin's surface, which significantly contributes to moisture retention and helps to reduce flakiness in dry or compromised skin. As a silicone elastomer, it imparts elasticity and a smooth feel, improving overall skin texture and suppleness. It actively absorbs excess oil, providing a desirable mattifying effect. Furthermore, it acts as a thickening agent and slip modifier, enhancing the spreadability and sensory experience of formulations, while also contributing to water, oil, and abrasion resistance for long-lasting cosmetic wear.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Not water-soluble, typically supplied as swollen gels in silicone or other oils. It can be incorporated into aqueous, water-in-oil, or oil-in-water emulsion systems. Formulators should prioritize minimizing residual styrene monomers to ensure safety. Its high heat resistance and elasticity contribute to formulation adaptability across various temperatures, often utilizing volatile carrier fluids for skin application.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The CIR Expert Panel concluded that this crosspolymer, along with 61 related dimethicone crosspolymers, is safe for use in cosmetic formulations, provided products are designed to be non-irritating. A primary concern for acrylate copolymers is the presence of residual styrene monomers, a potential carcinogen and endocrine disruptor; however, manufacturers maintain these levels as low as possible, mitigating safety risks in cosmetic applications. The SCCS was unable to assess the safety of nano-entities of similar copolymers, a distinction that may not apply to the non-nano form of this ingredient. No specific FDA status was identified.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

This versatile silicone elastomer offers significant benefits for skin conditioning, mattification, and formulation aesthetics, making it a valuable addition for enhancing product performance and skin feel across various skin types.

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