Description

Polyglutamic Acid is a naturally occurring, water-soluble, biodegradable biopolymer of glutamic acid. This versatile compound is valued for its exceptional moisture retention, film-forming, and chelating properties, making it a high-performance ingredient for advanced formulations. It is essential for manufacturers in the cosmetics, agriculture, pharmaceuticals, and food industries seeking natural, multifunctional, and sustainable additives.

Application

• Cosmetics & Personal Care: A highly effective humectant and moisturizer in skincare (creams, serums, masks) for long-lasting hydration and improved skin barrier function.
• Agriculture: Used as a superabsorbent polymer in water-retaining agents and as a nutrient enhancer in fertilizers to improve soil moisture and nutrient uptake.
• Pharmaceuticals & Medical: Employed as a biodegradable drug delivery carrier, wound dressing material, and bioadhesive due to its biocompatibility and controlled release properties.
• Food Industry: Functions as a natural thickener, stabilizer, and flavor enhancer, and is used in dietary supplements for its potential health benefits.
• Industrial: Serves as a biodegradable flocculant in wastewater treatment and a dispersant in various chemical processes.

Basic Information

Product Name	Polyglutamic Acid
CAS No.	25513-46-6
Molecular Formula	(C5H7NO3)n
Molecular Weight	Variable (Polymer)
Synonyms	PGA; γ-Polyglutamic Acid; Poly(glutamic acid); Glutamic acid homopolymer; Natto gum; (S)-Poly(glutamic acid); 2-Aminopentanedioic acid homopolymer; Poly-α-glutamate
EINECS	Contact for details

Quality Control

Our Polyglutamic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, molecular weight distribution, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, viscosity, and microbial limits are provided to guarantee compliance with your specific application requirements, whether for cosmetic, food-grade, or technical use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (PGA Content)	≥ 90% (by HPLC)
pH (1% Solution)	5.0 - 7.0
Loss on Drying	≤ 8.0%
Viscosity (1% Solution)	Reported per grade
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 CFU/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.