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POLYACRYLATE CROSSPOLYMER-3.

Valuable CAS - / HAIR FIXING

Polyacrylate Crosspolymer-3 is a multi-functional synthetic polymer crucial for optimizing the texture, stability, and feel of cosmetic formulations. It acts primarily as a thickening agent and emulsion stabilizer, preventing ingredient separation and providing a desirable product consistency. Additionally, it forms a subtle film on the skin, contributing to moisture retention.

Summary

thickener film-forming emulsion stabiliser texture enhancer hair fixing

Science

Mechanism of Action

This ingredient functions by creating a polymer network within the formulation, which efficiently increases viscosity and stabilizes emulsions by preventing the coalescence of dispersed phases. On the skin, its film-forming capability allows it to create a protective, breathable layer. This layer helps to reduce transepidermal water loss, thereby supporting skin hydration and enhancing the overall feel of the product.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Clinical studies for related polyacrylate crosspolymers, such as Polyacrylate Crosspolymer-6, indicate non-sensitizing and non-irritating properties in human subjects at concentrations around 5%.
  2. 02 In vitro HET-CAM tests demonstrated that Polyacrylate Crosspolymer-6 at 2% was non-irritating. Rabbit dermal irritation studies showed non-irritating effects at concentrations exceeding 90%.
  3. 03 Human testing of Acrylates/C10-30 Alkyl Acrylate Crosspolymer revealed no dermal irritation or sensitization from undiluted to 2.5% aqueous solutions, with only a weak irritant response noted for undiluted material in an intensified patch test.

Transparency

Dusting Analysis

Not commonly dusted

Polyacrylate Crosspolymer-3 is a functional ingredient used for its rheological and stabilizing properties, not typically as an active ingredient at very low 'dusted' concentrations.

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 8
0 7 14

Stability

Polyacrylate Crosspolymer-3 exhibits high stability across a wide pH range of 2.0 to 8.0. Related pre-neutralized polymers, such as Polyacrylate Crosspolymer-6, demonstrate strong resistance to electrolytes, tolerating salt concentrations up to 10%, ensuring robust formulation stability.

Safety

Safety Profile

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

The CIR Expert Panel has concluded that Acrylates Crosspolymer-3, along with numerous other acrylate copolymers, is safe for cosmetic use under current practices and concentrations, provided formulations are non-irritating. The highest reported maximum concentration for a related ingredient, Polyacrylate Crosspolymer-6, is 5% in mascaras. Furthermore, Polyacrylate Crosspolymer-3 is approved under Annex III of the EC Cosmetics Regulation following an SCCS assessment, confirming its safe use under specified conditions without specific EU restrictions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Polyacrylate Crosspolymer-3 is a valuable functional ingredient that significantly enhances formulation stability, texture, and feel, making it suitable for a wide range of cosmetic products and skin types due to its proven low irritancy profile.

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