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CASTOR OIL/IPDI COPOLYMER.

Valuable CAS 68955-90-8; 2097847-57-7 / FILM FORMING

A high-performance bio-based polymer that transforms liquid oils into sophisticated, crystal-clear gels. It provides a unique structural matrix that stabilizes formulas while delivering a protective, breathable film on the skin's surface.

Viscosity controlling Film forming Barrier repair Pigment suspension

Science

This copolymer utilizes supramolecular chemistry to create a physical network through hydrogen bonding. Once applied, it forms a continuous, water-resistant barrier that reinforces the skin's natural lipid layer and prevents moisture loss.


Research

High confidence
Effective range 1–30%
Optimal

5%

Key findings

  1. 01 Demonstrated significant reduction in transepidermal water loss (TEWL) and enhancement of the epidermal barrier function.
  2. 02 Achieved superior pigment suspension and oil-gelling with shear-thinning properties for optimized product spreadability.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

Because it is a functional texture modifier and barrier enhancer, concentrations below 1% are typically insufficient to provide either structural stability or the documented moisture-retaining film benefits.


The Formula

Solubility
Oil
Optimal pH 2 – 12
0 7 14

Stability

Extremely thermally stable; requires heating to 80°C-100°C for at least 30 minutes to ensure full activation and uniform dispersion.

Synergies

  • Mineral UV filters
  • Lipophilic active ingredients
  • Polar vegetable oils

Conflicts

  • Highly non-polar oils
  • Cold-process aqueous phases

Safety

CIR Status
Safe as used
Max tested
50%
Pregnancy
Safe
Sensitization risk Low

Reviewed as part of the polyurethane/copolymer group; it is considered non-irritating and safe for use in leave-on cosmetic applications.


Your Skin

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

Our Assessment

Valuable

An exceptional multi-functional ingredient that bridges the gap between sophisticated formula aesthetics and clinical barrier protection.


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