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Moumoujus

SODIUM AMPS.

Valuable CAS 5165-97-9 / NOT REPORTED

Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, often referred to as SODIUM AMPS, is a versatile polymer engineered to enhance the texture, stability, and consistency of skincare formulations. It functions to prevent ingredient separation and impart a smooth, non-greasy feel while offering mild hydrating benefits.

Summary

Viscosity Controller Emulsion Stabilizer Film Former Texture Enhancer Humectant

Science

Mechanism of Action

SODIUM AMPS primarily operates as a sophisticated rheology modifier, acting as a thickener, stabilizer, and emulsifier within cosmetic formulations. By binding ingredients, it prevents phase separation, ensuring product integrity and uniform application. On the skin, it forms an invisible, breathable film which helps to mitigate transepidermal water loss and contributes to surface hydration. This polymer’s structural adaptability allows for optimal product consistency across diverse skin types, ensuring formulations feel light and non-comedogenic, while also potentially optimizing the delivery and stability of co-formulated active ingredients over time.

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 N/A
0 7 14

Stability

This polymer readily disperses in water and demonstrates robust stability. Its AMPS monomer building block exhibits excellent resistance to hydrolysis in aqueous solutions, particularly above pH 9. The compound maintains its functional properties reliably across a broad pH range and demonstrates significant thermal stability, ensuring product integrity under varying environmental conditions.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed acryloyldimethyltaurate polymers, including Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, safe for cosmetic use under current practices. As a large molecular weight ingredient, skin absorption is not anticipated. CIR guidelines recommend adherence to cGMPs to minimize residual monomers and restrict acrylamide levels to a maximum of 5 ppm in final products. The European Cosmetics Regulation (SCCS) has also approved this ingredient, potentially with specific conditions related to purity or concentration limits. In 2017, FDA usage data indicated its presence in 197 formulations, predominantly leave-on products (190).

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

SODIUM AMPS is a valuable formulation enhancer, contributing significantly to product stability, texture, and user experience with minimal irritation or comedogenic potential across all skin types.

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