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DIMETHICONOL/SILICA CROSSPOLYMER.

Valuable CAS - / FILM FORMING

A sophisticated silicone polymer, DIMETHICONOL/SILICA CROSSPOLYMER enhances the sensory experience of skincare by imparting a silky-smooth, non-greasy finish. It forms a breathable protective film on the skin, reducing moisture loss while subtly blurring imperfections for a 'soft focus' effect.

Summary

Emollient Film-forming Viscosity Controlling Skin Conditioning Oil Absorbing Light Scattering

Science

Mechanism of Action

This ingredient primarily improves the texture, spreadability, and slip of cosmetic formulations, delivering a distinctively smooth feel to the skin. Its film-forming capabilities create a delicate, permeable barrier that helps guard against transepidermal moisture loss. Furthermore, it actively mattifies the skin through the absorption of excess oil and optically minimizes the appearance of fine lines and minor imperfections by scattering light, resulting in a refined soft-focus effect. It also serves critical formulation roles as a thickening agent, emulsifier, and stabilizer.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

There is no indication from the available research data that DIMETHICONOL/SILICA CROSSPOLYMER is commonly associated with 'dusting' in cosmetic applications.

The Formula

Formulation

Solubility
Oil
Optimal pH 7 – 7
0 7 14

Stability

DIMETHICONOL/SILICA CROSSPOLYMER is insoluble in water but disperses effectively in oil-based systems. As a silicone-based crosspolymer, it exhibits robust chemical stability and resistance to oxidation, thereby contributing to extended product shelf life. The optimal pH for general Dimethicone Crosspolymer functionality is precisely 7.0.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
55.2%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has comprehensively assessed 62 ingredients within the dimethicone crosspolymer class, which includes compositions similar to DIMETHICONOL/SILICA CROSSPOLYMER. The panel concluded that these ingredients are safe under current practices of use and concentration. They are generally regarded as non-toxic, non-irritating, and non-comedogenic. While concentrations for dimethicone crosspolymers typically range from 0.5% to 25% depending on function (e.g., film-forming or viscosity-increasing), related polysilsesquioxanes have been reported at concentrations up to 55.2% in other makeup preparations, all falling within the safe assessment.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

DIMETHICONOL/SILICA CROSSPOLYMER is a valuable multifunctional ingredient, enhancing product aesthetics and skin feel, while offering tangible benefits like moisture retention, oil control, and a visible soft-focus effect across all skin types.

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References

Sources