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ADIPIC ACID/ISOPHTHALIC ACID/NEOPENTYL GLYCOL/TRIMETHYLOLPROPANE COPOLYMER.

Valuable CAS 25950-34-9 / FILM FORMING, HAIR FIXING

This synthetic polyester copolymer functions as a film-former, creating a flexible, hydrophobic layer on the skin. It enhances product texture and supports skin's moisture retention.

film former viscosity controlling hair fixing

Science

Upon application, it forms a continuous, occlusive film that reduces transepidermal water loss (TEWL), thereby locking in moisture. This mechanism also provides structural integrity to the product and improves spreadability.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 5 – 9
0 7 14

Stability

Highly stable with excellent hydrolytic resistance, this polymer maintains integrity within a pH range of 5.0 to 9.0.

Conflicts

  • Strong oxidizing agents
  • Highly acidic environments (pH < 4.0)

Safety

CIR Status
Safe as used
Max tested
1%
Sensitization risk Low

While specific studies for this copolymer are limited, it is often grouped with related polyester copolymers deemed safe by CIR at typical leave-on concentrations around 1.0%.


Your Skin

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

Our Assessment

Valuable

This versatile polyester copolymer is a valuable film-former and viscosity enhancer, offering occlusive moisture retention and improved product performance with low irritation potential across all skin types.


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