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BIS(GLYCIDOXYPHENYL)PROPANE/BISAMINOMETHYLNORBORNANE COPOLYMER.

Valuable CAS - / FILM FORMING

A high-performance synthetic thermoplastic resin utilized primarily for its exceptional film-forming properties and ability to stabilize pigments. In precision skincare and cosmetics, it acts as a protective architectural matrix that secures colorants on the surface of the skin while maintaining structural integrity.

Film Former Pigment Carrier Waterproofing Agent

Science

This copolymer creates an ultra-thin, non-permeable barrier on the skin's surface. By encapsulating pigments—specifically fluorescent or neon dyes—it prevents direct contact between potentially irritating colorants and the epidermis, while simultaneously enhancing water resistance and color longevity.


Research

Medium confidence
Effective range 0.1–5%
Optimal

5%

Key findings

  1. 01 Research indicates its primary efficacy lies in pigment encapsulation (e.g., DermaGlo technology), ensuring dyes remain on the surface without dermal penetration.

Transparency

Not commonly dusted
Min. effective
0.1%
Red flag below
0.05%

As a functional resin rather than a bioactive, 'dusting' is less of a concern; however, concentrations below 0.1% are unlikely to provide meaningful film-forming or pigment-shielding benefits.


The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Highly resilient across a broad pH spectrum, making it ideal for diverse environments including high-pH hair treatments.

Synergies

  • Fluorescent pigments
  • Hydrophobic UV filters

Conflicts

  • Strong polar solvents
  • High concentrations of anionic surfactants

Safety

CIR Status
Not reviewed
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Rated as low hazard (Score 1) by EWG. FDA restrictions apply to the pigments it carries, specifically regarding use in the immediate eye area.


Your Skin

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

Our Assessment

Valuable

An essential functional ingredient for stabilizing vibrant pigments and enhancing the water-resistance of protective skin films.


Related

Finding similar ingredients…


References