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Moumoujus

POLYSILICONE-11.

Valuable CAS 63394-02-5 / FILM FORMING

POLYSILICONE-11 is a silicone polymer that forms a flexible, breathable film on the skin's surface, enhancing texture and feel. It functions as a protective barrier, helps to retain moisture, and contributes to a smooth, matte finish by blurring imperfections and controlling sebum.

Summary

Film-forming Texture enhancer Emollient Absorbent Protective barrier Moisture retention Fine line blurring Redness reduction Sebum control

Science

Mechanism of Action

This ingredient operates by creating a flexible, mesh-like film on the skin, which forms a protective barrier allowing the skin to breathe without clogging pores. This barrier is crucial for retaining moisture, preventing transepidermal water loss (TEWL), and shielding against environmental aggressors and harmful particles. POLYSILICONE-11 also imparts a desirable smooth, silky, powdery-soft, and non-greasy feel to the skin. It effectively minimizes the appearance of fine lines, making imperfections less noticeable, and contributes to sebum absorption, leading to a matte complexion. Furthermore, it can facilitate the delivery of other active ingredients and helps to reduce skin redness and irritation.

Research

Clinical Evidence

High confidence
Effective range 0.04–14.6%
Optimal

N/A

Key findings

  1. 01 Demonstrated non-irritating properties across a wide concentration range (0.04% - 19.9%) in various rinse-off and leave-on cosmetic formulations.
  2. 02 A 48-hour patch test on 50 subjects showed no irritation when applied in a lipstick formulation containing 1.8% POLYSILICONE-11.
  3. 03 An Ames assay reported no mutagenicity when POLYSILICONE-11 was present at 14% within a mixture.
  4. 04 A skin irritation study on New Zealand white albino rabbits observed no irritation with a 6% concentration as part of a mixture.

Transparency

Dusting Analysis

Not commonly dusted

There is no specific data available to suggest POLYSILICONE-11 is commonly associated with 'dusting' or has a defined dusting threshold.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Synergies

  • Enhances delivery and penetration of other beneficial ingredients

Safety

Safety Profile

CIR Status
Safe as used
Max tested
19.9%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded POLYSILICONE-11 is safe for use in cosmetics at current concentrations and practices. Its large molecular weight (exceeding 1 million Da) prevents skin penetration, addressing concerns regarding chronic toxicity and genotoxicity. This ingredient faces no restrictions under European Union regulations, and its manufacturing process is reported to yield no impurities or residual monomers.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

POLYSILICONE-11 is a valuable ingredient for improving skin texture, providing a protective barrier, reducing the appearance of fine lines, and managing sebum, suitable for all skin types due to its high safety profile and non-comedogenic nature.

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