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POLYACRYLAMIDOMETHYLPROPANE SULFONIC ACID.

Valuable CAS 27119-07-9 / FILM FORMING

Polyacrylamidomethylpropane Sulfonic Acid is a high-performance, water-soluble polymer engineered to optimize formulation stability and sensory experience. It acts as a sophisticated texture enhancer, gelling agent, and film-former, imparting a luxurious feel to skincare products.

film-forming texture enhancer thickener/gelling agent emulsion stabilizer dispersing agent lubricating agent water retention enhancer

Science

This anionic polymer significantly enhances a product's viscosity and water retention through its potent hydrophilic properties, attributed to its sulfonic acid groups. These characteristics facilitate excellent water absorption, which stabilizes emulsions and contributes to an aesthetically pleasing slip during application. It leaves the skin with a soft, plush after-feel, particularly when incorporated as a high molecular weight homopolymer.


Research

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 No specific human clinical studies demonstrating direct skincare benefits were identified. One in vitro study on a chick chorioallantoic membrane (CAM) assay showed dose-dependent inhibition of microvessel formation ranging from 10 to 150 micrograms/disc, indicating potential as an angiogenesis inhibitor.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Known for exceptional thermal stability and resilience, this ingredient maintains efficacy across a wide spectrum of pH levels and temperatures. Its anionic sulfonate group ensures solubility in strong acids and bases.


Safety

CIR Status
Safe as used
Max tested
3%
Sensitization risk Low

The CIR Expert Panel affirmed Polyacrylamide, including this derivative with minimal acrylamide monomer content (less than 0.01%), as safe for cosmetic use. It carries a 'LOW' rating from EWG for concerns like cancer, allergies, immunotoxicity, and developmental/reproductive toxicity. Environment Canada considers it non-toxic and non-bioaccumulative, while FDA has approved related polymers for specific low-ppm food-contact uses.


Your Skin

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

Our Assessment

Valuable

This ingredient is a valuable functional asset, significantly enhancing product texture, stability, and sensory experience with a robust safety profile.


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