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PEG-15/LAURYL POLYDIMETHYLSILOXYETHYL DIMETHICONE CROSSPOLYMER.

Valuable CAS - / VISCOSITY CONTROLLING

PEG-15/LAURYL POLYDIMETHYLSILOXYETHYL DIMETHICONE CROSSPOLYMER is a versatile silicone elastomer that refines product texture and enhances skin feel. It functions as an emollient, emulsifier, and viscosity modifier, delivering a smooth finish and contributing to skin hydration.

Viscosity Enhancer Emollient Emulsifier Texture Enhancer Protective Barrier Agent Pigment Dispersant Light Stabilizer

Science

This ingredient, a cross-linked silicone polymer, primarily acts as a non-aqueous viscosity-enhancing agent, improving formulation consistency. On the skin, it delivers emollient benefits by softening and smoothing, while also forming a protective film to support long-lasting hydration. Furthermore, it functions as an effective emulsifier, blending water and oil phases, and can serve as a dispersant for pigments and powders like mineral UV filters. It also provides light stabilization to protect cosmetic products.


Research

Low confidence
Effective range 0–0.3%
Optimal

0.3%


Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Possessing both hydrophilic and lipophilic characteristics, this ingredient readily binds water, oil, and silicone, demonstrating miscibility in silicone. While no explicit optimal pH range is defined, its broad stability is inferred across typical cosmetic pH levels. Concentrations exceeding approximately 3% may lead to formulation liquefaction. For incorporation, it is typically mixed into the silicone phase, followed by gradual addition of the water phase; if oil is present, it should be combined with the silicone phase first.


Safety

CIR Status
Safe as used
Max tested
0.3%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed dimethicone crosspolymers, including this ingredient, safe for use at concentrations up to 0.3% in leave-on products. General dermal tests with related crosspolymers indicate non-irritancy for most users; however, individuals with highly sensitive skin might experience mild irritation. While general concerns exist regarding potential trace impurities like ethylene oxide in some PEGs, the dimethicone components are considered safe, and these impurities are not typically a health concern. The Scientific Committee on Consumer Safety (SCCS) of the EU has reviewed and approved its use under specified conditions.


Your Skin

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

Our Assessment

Valuable

This multi-functional silicone crosspolymer is valuable for enhancing cosmetic elegance, texture, and stability, while offering emollient benefits and contributing to a superior product experience.


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