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Moumoujus

BUTYL ACRYLATE/HYDROXYPROPYL DIMETHICONE ACRYLATE COPOLYMER.

Valuable / FILM FORMING, HAIR FIXING

A hybrid silicone-acrylate polymer that creates an invisible, breathable film on skin to enhance product longevity and transfer resistance. This sophisticated film former combines the flexibility of silicones with the durability of acrylates, making it essential for high-performance cosmetics. Upon application, volatile carriers evaporate to leave a water and sebum-resistant matrix that locks pigments in place.

Summary

film former viscosity controlling transfer resistance enhancer

Science

Mechanism of Action

Forms a flexible polymer matrix that binds to skin through evaporation of carrier solvents, creating a hydrophobic yet breathable barrier that resists water, oils, and mechanical transfer while maintaining skin comfort

Research

Clinical Evidence

Medium confidence
Effective range 4.9–10%
Optimal

7%

Key findings

  1. 01 Grant Industries technical data demonstrates enhanced transfer resistance and durability in color cosmetics at 5-10% concentrations
  2. 02 Formulation analysis shows effective barrier protection and water resistance in lip treatments at 4.9-7.4% levels

Transparency

Dusting Analysis

Not commonly dusted

As a specialized film former with specific technical requirements and optimal concentration ranges, this ingredient is typically used at appropriate levels rather than being dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Demonstrates excellent stability in anhydrous formulations and both oil-in-water and water-in-oil emulsions, with particular compatibility in silicone and hydrocarbon systems

Synergies

  • Dimethicone
  • Cyclopentasiloxane
  • Isododecane

Conflicts

  • High-water content systems without emulsifiers
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Assessed by CIR as part of acrylate copolymers group with favorable safety profile for topical cosmetic applications

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A technically sophisticated film former that delivers proven performance benefits in long-wear cosmetics with excellent safety and broad skin compatibility.

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References

Sources