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STARCH/ACRYLATES/ACRYLAMIDE COPOLYMER.

Valuable / BINDING, FILM FORMING, VISCOSITY CONTROLLING

STARCH/ACRYLATES/ACRYLAMIDE COPOLYMER is a synthetic polymer designed to optimize cosmetic formulations. It acts as a multi-functional ingredient, primarily contributing to product texture, stability, and sensory attributes on the skin.

Summary

Binding Agent Film-forming Agent Viscosity Controlling Agent

Science

Mechanism of Action

This copolymer functions by forming a continuous, protective film on the skin, hair, or nails, which imparts a soft, smooth after-feel and enhances the water resistance of the product. Internally, it acts as a binding agent, maintaining the structural integrity of powdered components, and as a viscosity controlling agent, allowing precise adjustment of a product's thickness and consistency.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–25%
Optimal

N/A

Key findings

  1. 01 Clinical observations suggest efficacy for viscosity control and emulsion stabilization at concentrations as low as 0.5% (referencing the broader Acrylates Copolymer group).
  2. 02 For binding and film-forming applications, related Acrylates Copolymers have been utilized effectively at concentrations up to 25%.
  3. 03 A closely related ingredient, Corn Starch/Acrylamide/Sodium Acrylate Copolymer, has been documented in bath products at concentrations up to 2%.

Transparency

Dusting Analysis

Not commonly dusted

This ingredient is a copolymer typically incorporated into liquid or semi-solid formulations for its functional properties, rather than being used as a standalone fine powder for direct topical application.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Related acrylates/acrylamide copolymers exhibit pH sensitivity, often requiring neutralization in water/alcohol mixtures to achieve optimal solubility and dispersibility within formulations.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
0.1%
Sensitization risk Unknown

The CIR Expert Panel deems this ingredient safe for cosmetic use when formulations are non-irritating and adhere to strict limits on residual acrylamide monomer. Specifically for STARCH/ACRYLATES/ACRYLAMIDE COPOLYMER, the SCCS stipulates that the residual acrylamide content must not exceed 0.1 mg/kg (0.1 ppm) in leave-on body care products and 0.5 mg/kg (0.5 ppm) in other cosmetic product types.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

STARCH/ACRYLATES/ACRYLAMIDE COPOLYMER is a valuable multifunctional polymer that significantly enhances product stability, texture, and sensory experience, provided its residual acrylamide levels strictly comply with regulatory safety limits.

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