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CELLULOSE ACETATE BUTYRATE.

Valuable CAS 9004-36-8 / FILM FORMING

Cellulose Acetate Butyrate is a versatile film-forming polymer engineered to create durable, flexible, and highly transparent films on the skin. It enhances product adhesion and provides a protective barrier, contributing to both product performance and skin integrity.

Film-forming agent Adhesion promoter Moisture barrier UV barrier Gloss enhancer

Science

This ingredient functions by forming a robust, flexible polymeric film upon application to the skin, hair, or nails. This film significantly contributes to product adhesion, imparts high transparency and surface gloss, and critically, acts as an effective barrier to reduce moisture loss and offer protection against ultraviolet light.


Research

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Ocular and dermal irritation studies demonstrated that Cellulose Acetate Butyrate was minimally irritating to the eyes and nonirritating to mildly irritating to the skin, even at concentrations up to 100%.
  2. 02 Rigorous testing confirmed that this ingredient is non-sensitizing and non-photosensitizing, ensuring high skin tolerance.

Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Cellulose Acetate Butyrate exhibits good stability under UV exposure and resists degradation from weathering. Its non-ionizable nature makes it suitable for pH-independent coating applications.

Conflicts

  • melamine
  • urea-formaldehyde
  • many alkyds

Safety

CIR Status
Safe as used
Max tested
100%
Sensitization risk Low

The CIR Expert Panel concluded that Cellulose Acetate Butyrate is safe for cosmetic use, demonstrating minimal eye irritation and nonirritating to mildly irritating effects on the skin at concentrations up to 100%. It poses no sensitization or photosensitization risk.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Valuable

As a highly safe, film-forming agent, Cellulose Acetate Butyrate provides excellent adhesion, transparency, gloss, and barrier protection, making it a valuable addition to diverse cosmetic formulations.


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