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POLYACRYLATE CROSSPOLYMER-6.

Valuable CAS - / EMULSION STABILISING, VISCOSITY CONTROLLING

Polyacrylate Crosspolymer-6 is a high-performance synthetic polymer renowned for its ability to thicken and stabilize water-based formulations. It creates elegant, non-sticky gel textures with a smooth, velvety skin feel, while also enhancing formulation stability and contributing to sebum control.

Summary

thickener emulsion stabilizer viscosity controlling texture enhancer oil absorbing moisture retention

Science

Mechanism of Action

This pre-neutralized cross-linked acrylic polymer functions by efficiently gelling the water phase within cosmetic formulations, enabling it to thicken emulsions and suspend oil droplets or solid particles. On the skin, it forms a fine, protective film that contributes to moisture retention and optimizes the spreadability of other active ingredients. Its inherent oil-absorbing properties also help to control excess sebum and impart a desirable matte finish, making it beneficial for a range of skin concerns. The polymer's robust structure further stabilizes formulations, protecting sensitive active ingredients and extending product shelf life by creating a barrier against environmental factors like air, heat, and light.

Research

Clinical Evidence

High confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Demonstrated non-irritating properties in a dermal irritation study conducted in rabbits.
  2. 02 Proven non-sensitizing in a Human Repeated-Insult Patch Test (HRIPT).
  3. 03 Predicted to be a non-ocular irritant in an in vitro HET-CAM test.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 8
0 7 14

Stability

Exhibits robust resistance to electrolytes, tolerating up to 10% salts across its broad pH range of 2 to 8. It is supplied in a pre-neutralized form, which streamlines formulation processes. While stable across its optimal pH range, peak viscosity performance is typically observed between pH 6 and 8. It is highly versatile, suitable for integration into both hot and cold process formulations.

Conflicts

  • strong acids
  • strong bases
  • oxidizing substances

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel considers acrylates copolymers, including Polyacrylate Crosspolymer-6, safe for use in cosmetics when formulated to be non-irritating. While a human repeated-insult patch test at ~5% indicated no sensitization, and an in vitro test at 2% predicted non-ocular irritation, an in vivo rabbit study reported slight eye irritation at an unspecified concentration, with effects resolving fully within 6 to 7 days. It holds regulatory approval and is not restricted from use within the European Union.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Polyacrylate Crosspolymer-6 is a valuable, safe, and versatile polymer, integral for optimizing the texture, stability, and sensory profile across a broad spectrum of skincare and cosmetic formulations.

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