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BUTYL METHACRYLATE/DMAPA ACRYLATES/VINYLACETAMIDE CROSSPOLYMER.

Valuable / FILM FORMING

A sophisticated polymeric film-former that creates a protective 'lotus effect' barrier on skin's surface while enhancing thermal protection. This crosslinked polymer functions as both a rheology modifier and sacrificial shield against harsh surfactants in cleansing formulations.

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Science

Forms a breathable, hydrophilic film layer that repels external contaminants and water while minimizing trans-epidermal water loss. Acts as a protective buffer between harsh surfactants and skin's natural lipid barrier, preventing protein degradation during cleansing.


Research

High confidence
Effective range 0.1–5%
Optimal

2.5%

Key findings

  1. 01 Significantly reduces surfactant-induced keratolysis and provides lotus effect that delays re-soiling and moisture loss
  2. 02 Enhances thermal protection for keratin fibers and improves surface wetting force, leading to smoother texture in self-assessments

Transparency

Not commonly dusted

As a functional film-forming polymer with specific concentration requirements, this ingredient is typically used at effective levels rather than dusted


The Formula

Solubility
Water
Optimal pH 4 – 8
0 7 14

Stability

Maintains optimal viscosity and film integrity within pH 6.0-7.0 range. Highly stable in electrolyte-rich and dye-containing systems.

Conflicts

  • High concentrations of anionic surfactants may cause complexation depending on crosslinking density
  • Strongly acidic environments below pH 3.5 may cause polymer precipitation

Safety

CIR Status
Not reviewed
Max tested
10%
Sensitization risk Low

Generally recognized as safe within typical cosmetic usage ranges (0.05%-10%). High molecular weight makes skin penetration unlikely, contributing to low toxicological risk profile.


Your Skin

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

Our Assessment

Valuable

A multifunctional polymer offering unique protective benefits with excellent safety profile across all skin types.


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References