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Moumoujus

SODIUM ACRYLATE/VINYL ALCOHOL COPOLYMER.

Valuable CAS 27599-56-0 / 58374-38-2 / ANTISTATIC, BINDING, EMULSION STABILISING, FILM FORMING, VISCOSITY CONTROLLING

Sodium Acrylate/Vinyl Alcohol Copolymer is a synthetic polymer engineered to create a protective film on the skin's surface. This film effectively minimizes transepidermal water loss, promoting sustained hydration, and delivers a notably soft and smooth after-feel. Beyond its skin benefits, it significantly enhances product texture and stability.

Summary

antistatic binding emulsion stabilising film forming viscosity controlling

Science

Mechanism of Action

Operating as a film-forming agent, Sodium Acrylate/Vinyl Alcohol Copolymer establishes a permeable yet protective barrier on the skin. This barrier functions to diminish moisture evaporation, thereby increasing skin hydration and supporting the skin's natural barrier function. Its presence also contributes to a refined sensory experience, leaving skin feeling notably smoother. Additionally, its polymeric structure holds potential for the controlled delivery of encapsulated active ingredients over an extended period.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 8
0 7 14

Stability

This copolymer exhibits optimal stability within a pH range of 4.5 to 8.0, facilitating its use in diverse formulations. It is primarily employed to refine product texture, stabilize emulsions, and effectively suspend other ingredients, contributing to overall product integrity and performance. Its polyvinyl alcohol component further aids in emulsion stabilization.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
25%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Sodium Acrylate/Vinyl Alcohol Copolymer is safe for use in cosmetics, provided formulations are non-irritating to the skin. This safety evaluation extends to concentrations up to 25% in products intended for dermal contact. To mitigate potential irritation, the use of highly purified copolymers, free of residual monomers, is strongly recommended. While the SCCS has not specifically reviewed this ingredient, the FDA regulates acrylic polymers for food contact, though no specific cosmetic approval status is currently listed.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

This versatile polymer is valuable for enhancing skin hydration, improving product aesthetics, and ensuring formulation stability across a broad spectrum of skincare applications.

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