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DECYL HDI/PEG-180 CROSSPOLYMER.

Valuable CAS - / VISCOSITY CONTROLLING

DECYL HDI/PEG-180 Crosspolymer is a multi-functional cosmetic ingredient integral to enhancing product texture and stability. It primarily serves as a viscosity controller and film-former, while also providing mild humectant properties to attract and retain skin moisture.

Summary

Viscosity Controlling Film Former Humectant Solvent

Science

Mechanism of Action

This complex crosspolymer, derived from hexamethylene diisocyanate (HDI), PEG-180, and decyl alcohol, primarily functions to increase the viscosity of cosmetic formulations, thereby contributing to overall product texture and stability. Its PEG-180 component acts as a humectant, drawing and retaining moisture on the skin's surface to impart a smoother, more supple feel. Furthermore, it serves as a solvent, facilitating the uniform dissolution and distribution of oil-based ingredients within water-based systems, which is critical for product consistency and active ingredient delivery. The crosspolymer also forms a protective film upon application to the skin.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

PEG solutions containing this ingredient are sensitive to warm temperatures, light, and oxygen, which can accelerate degradation. Optimal stability is achieved when stored frozen at -20°C. Refrigerated storage at 4°C offers greater stability compared to room temperature. Minimizing oxygen exposure by purging containers with argon and storing solutions protected from light can further enhance longevity.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that DECYL HDI/PEG-180 Crosspolymer is safe for use in cosmetics under current practices of concentration. The PEG-180 component is characterized as non-sensitizing, non-irritating, and non-comedogenic at recommended concentrations. Due to its substantial molecular size, PEG-180 is not absorbed into the skin. While the HDI monomer itself is an occupational irritant, the CIR Panel determined that cosmetic applications of these crosspolymers would not contain toxicologically significant levels of residual isocyanate monomers. Dermal and ocular irritation and sensitization assays consistently showed no safety concerns under typical use conditions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

DECYL HDI/PEG-180 Crosspolymer is a valuable multi-functional ingredient that significantly enhances formulation stability and texture, provides mild hydration, and is well-tolerated across all skin types with low irritancy and comedogenicity concerns.

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