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TRIMETHYLSILOXYSILICATE.

Valuable / ANTIFOAMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Trimethylsiloxysilicate is a versatile silicone polymer that forms a lightweight, breathable film on the skin's surface, establishing a protective barrier against moisture loss and environmental aggressors. This ingredient also acts as an emollient, visibly refining skin texture and bolstering the durability and water resistance of cosmetic formulations.

film forming skin conditioning emollient protective barrier

Science

This ingredient functions by depositing a thin, protective, and breathable film onto the skin. This film creates an effective barrier that minimizes transepidermal water loss, thereby enhancing and preserving skin hydration. Concurrently, it offers protection against external irritants, allergens, and bacteria. By filling microscopic gaps between dead skin cells, Trimethylsiloxysilicate supports the integrity of the lipid barrier, leading to a softer, smoother, and healthier skin appearance. Furthermore, its film-forming properties contribute to a silky skin feel and extend the wear of cosmetic products.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

No specific data regarding 'dusting' or related thresholds for Trimethylsiloxysilicate was identified in the provided research.


The Formula

Solubility
Oil
Optimal pH 5 – 7
0 7 14

Stability

Trimethylsiloxysilicate demonstrates high stability, retaining its film-forming capabilities across a broad range of pH levels and temperatures. It is inherently resistant to oxidation, hydrolysis, and UV-induced degradation under standard conditions, ensuring robust performance in formulations.

Conflicts

  • Strong oxidizing agents
  • Extremely acidic conditions
  • Strong bases
  • Reactive chemicals
  • High concentrations, which may result in a tacky feel in the final product

Safety

CIR Status
Safe as used
Sensitization risk Low

The CIR Expert Panel has affirmed Trimethylsiloxysilicate as safe under current usage practices and concentrations, provided the finished product is not irritating or sensitizing to the respiratory tract. It is generally considered safe for skin and hair, particularly when utilized at lower concentrations. Direct dermal contact typically exhibits a low potential for irritation. However, individuals with highly sensitive skin are advised to perform a patch test, as prolonged or repeated exposure to elevated concentrations may potentially induce mild dryness, irritation, or sensitization.


Your Skin

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

Our Assessment

Valuable

Trimethylsiloxysilicate is a valuable ingredient for its ability to form a durable, protective film that significantly enhances skin hydration and texture while simultaneously improving the longevity and water resistance of cosmetic formulations across all skin types.


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