Polymers & Resins
REACH
Sodium polyglutamate
CAS Number
28829-38-1
What is Sodium polyglutamate?
Sodium polyglutamate (CAS 28829-38-1), abbreviated NaPGA, is a naturally derived polyamino acid produced by microbial fermentation of glutamic acid.
Where is Sodium polyglutamate used?
- Skincare and haircare: humectant outperforming hyaluronic acid in moisture retention at equivalent concentrations, used in serums, moisturizers and conditioning treatments
- Food: flavor enhancer and texture modifier in soups, sauces and fermented products, reducing sodium content without compromising taste
- Agriculture: chelating micronutrients in liquid fertilizers to improve nutrient uptake and reduce leaching losses
- Water treatment: sequestering calcium and magnesium ions to control scale in industrial cooling and process water systems
- It also functions as a film-former and chelating agent.
Commercial specifications
- Fermentation-derived material is the market standard for high-purity applications
Other Names (Synonyms)
Poly[imino[(1S)-1-(2-carboxyethyl)-2-oxo-1,2-ethanediyl] sodium salt (1:1)]|Poly[iminocarbonyl(3-carboxypropylidene) monosodium salt], L-|Poly[imino[1-(2-carboxyethyl)-2-oxo-1,2-ethanediyl] monosodium salt], (S)-|Poly[imino[(1S)-1-(2-carboxyethyl)-2-oxo-1,2-ethanediyl] monosodium salt]|Poly(sodium glutamate)