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ACRYLATES CROSSPOLYMER-4.

Valuable CAS - / EMULSION STABILISING, FILM FORMING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

Acrylates Crosspolymer-4 is a versatile rheology modifier and film-former, expertly designed for acidic formulations. It stabilizes emulsions and suspends insoluble particles while enhancing sensory feel.

viscosity controlling emulsion stabilising film forming suspending agent

Science

This cross-linked polymer operates via hydrophobic modification, forming a structured network in water to provide high yield value. It effectively suspends beads and stabilizes emulsions, also forming a breathable, water-resistant film on the skin for improved slip.


Research

Medium confidence
Effective range 1–30%
Optimal

N/A

Key findings

  1. 01 A 1% solution showed only slight, transient ocular irritation in vivo, resolving within 72 hours.
  2. 02 Clinical testing of a related polymer class at 30% solids confirmed non-irritating and non-sensitizing properties in human subjects.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Engineered for low pH systems (4-6) where traditional thickeners fail, maintaining clarity and viscosity. It is compatible with organic acid preservatives like Sodium Benzoate.

Synergies

  • Organic acid preservatives (e.g., Sodium Benzoate)

Conflicts

  • High concentrations of electrolytes/salts
  • Strongly cationic ingredients

Safety

CIR Status
Safe as used
Max tested
30%
Sensitization risk Low

The CIR Expert Panel found acrylates crosspolymers safe when non-irritating and not polymerized in benzene. Acrylates Crosspolymer-4 is polymerized in a preferred ethyl acetate/cyclohexane system.


Your Skin

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

Our Assessment

Valuable

This versatile ingredient is valuable for formulating stable, aesthetically pleasing, low-pH skincare products, offering excellent sensory properties and suspension capabilities.


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References