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$400
1-199 Others
$350
200-499 Others
$300
≥500 Others
Product Description
Poly-L-Glutamate is a biodegradable polyamino acid polymer derived from L-glutamic acid and widely used in cosmetics, agriculture, biotechnology, and functional material formulations. It is supplied as a powder or aqueous solution for manufacturers developing moisturizing ingredients, nutrient delivery systems, and environmentally friendly polymer applications.
Unlike L-Glutamic Acid, which is a single amino acid molecule, Poly-L-Glutamate consists of repeating glutamic acid units connected into a polymer chain. Its high density of functional carboxyl groups gives it unique water-binding and formulation properties.
Poly-L-Glutamate, also known as Poly-γ-glutamic acid (γ-PGA) when referring to the naturally occurring form, is a polymer composed of multiple L-glutamic acid molecules linked through peptide bonds.
Commercial Poly-L-Glutamate is commonly produced through microbial fermentation processes and supplied in different molecular weight ranges depending on application requirements. It is widely used in skincare formulations, agricultural products, biotechnology applications, and specialty functional materials.
| Item | Specification |
|---|---|
| Product Name | Poly-L-Glutamate |
| Other Name | Poly-L-Glutamic Acid / Poly-γ-Glutamic Acid (γ-PGA) |
| Category | Biopolymer Ingredients / Amino Acid Derivatives / Cosmetic Ingredients |
| CAS Number | 25513-46-6 |
| Molecular Formula | (C5H7NO3)n |
| Molecular Weight | Variable depending on polymerization degree |
| Appearance | White to light yellow powder or transparent aqueous solution |
| Assay Grade | Common cosmetic, agricultural, and specialty grades with controlled polymer content |
| Identification Method | GPC/SEC molecular weight analysis, FTIR, and chemical analysis methods |
| Typical Applications | Skincare formulations, moisturizing ingredients, agriculture, biotechnology, functional materials |
| Shelf Life | Typically 24 months under recommended storage conditions |
| Storage | Store in a cool, dry place, protected from moisture, heat, and direct sunlight |
| Packaging | Common packaging includes 1kg and 5kg foil bags, 25kg drums, or customized packaging |
Poly-L-Glutamate is widely used as a cosmetic ingredient in moisturizing and skin-conditioning formulations. It is incorporated into serums, creams, lotions, and specialty skincare products requiring polymer-based functional ingredients.
Poly-L-Glutamate is used in agricultural formulations where biodegradable polymer materials are required. It can be incorporated into nutrient-related products and soil management systems.
Due to its biodegradable nature and polymer structure, Poly-L-Glutamate is used in biotechnology research and specialty material development requiring amino acid-based polymers.
For buyers sourcing Poly-L-Glutamate, molecular weight is one of the most important specification factors. Polymer chain length influences viscosity, film-forming behavior, water retention characteristics, and suitability for different formulation systems.
| Selection Factor | Why It Matters | Typical Buyer Consideration |
|---|---|---|
| Molecular Weight | Affects viscosity, texture, and functional performance | Select according to skincare, agriculture, or industrial formulation requirements |
| Polymer Type | Determines structural characteristics and application suitability | Confirm the required Poly-L-Glutamate specification and form |
| Physical Form | Influences storage, transport, and processing | Powder and liquid forms are selected according to manufacturing needs |
| Quality Documentation | Supports supplier qualification and formulation evaluation | COA, TDS, SDS, and analytical reports are commonly requested |
Poly-L-Glutamate is commonly supplied in foil bags, fiber drums, or liquid containers depending on product form and application requirements. Customized packaging solutions can be arranged according to production, storage, and transportation needs.
Poly-L-Glutamate supports customized cosmetic and functional ingredient development projects. OEM services may include formulation support, polymer blending, customized packaging, labeling solutions, and technical documentation preparation.
Typical quality control procedures for Poly-L-Glutamate include:
Poly-L-Glutamate is used as a biodegradable polymer ingredient in cosmetics, agriculture, biotechnology, and functional material applications requiring water-binding or polymer performance characteristics.
L-Glutamic Acid is a single amino acid, while Poly-L-Glutamate is a polymer composed of repeating glutamic acid units. Their molecular structures and application functions are different.
Poly-L-Glutamate quality is commonly evaluated through molecular weight analysis, structural identification, composition testing, moisture analysis, and other applicable polymer quality procedures.
Poly-L-Glutamate is a biodegradable amino acid-based polymer used in skincare, agriculture, biotechnology, and functional material applications. With controlled specifications, reliable analytical testing, and flexible supply formats, it supports sustainable formulation development and professional ingredient procurement.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for Poly-L-Glutamate.

Packaging & Delivery
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