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BIS-HYDROXYPROPYL DIMETHICONE/SMDI COPOLYMER.

Valuable CAS - / FILM FORMING, SKIN CONDITIONING - EMOLLIENT

This silicone-urethane resin forms flexible films on the skin, enhancing water repellency and imparting a soft feel. It aids in moisture retention and ensures uniform coverage, particularly in color cosmetic formulations.

Film-forming Emollient Skin Conditioning

Science

It functions as a film former, creating a continuous, flexible layer on the skin that helps to retain moisture and provide a protective barrier. As a skin conditioning agent, it delivers emollient properties that soften and smooth the skin's surface.


Research

Medium confidence
Effective range 0.5–5%
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Stable under normal conditions, with a shelf life of 24-48 months when stored in original containers between 10-40°C. Avoid high heat or open flames.

Conflicts

  • Oxidizing agents

Safety

CIR Status
Not reviewed
Max tested
5%
Sensitization risk Unknown

While not explicitly reviewed, the CIR Expert Panel generally considers related large molecular weight dimethicone polymers safe due to unlikely skin absorption. The ingredient is typically supplied as a 45% active resin for use at 0.5-5.0% in formulations.


Your Skin

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

Our Assessment

Valuable

This copolymer is valuable for enhancing product longevity, providing water repellency, improving moisture retention, and ensuring smooth application across various skin types.


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