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Polyglutamic Acid Powder, often referred to as PGA or Gamma-Polyglutamic Acid (gamma-PGA), is a next-generation biopolymer celebrated for its exceptional moisturizing and skin-conditioning benefits. Derived through the fermentation of Bacillus subtilis (the same process used to make the traditional Japanese food natto), this natural polypeptide is an anionic, water-soluble compound that represents a significant advancement in high-performance skincare ingredients.
Gamma-Polyglutamic Acid (gamma-PGA) The core strength of this product lies in its active component, Gamma-Polyglutamic Acid (gamma-PGA), a unique polymer of glutamic acid. Its efficacy is rooted in two primary functions:
Positioned as a "superior" or "next-generation" humectant to Hyaluronic Acid, PGA is highly sought after across the cosmetics and personal care sectors. Its excellent biocompatibility, biodegradability, and non-toxic nature align perfectly with the "clean beauty" trend and the demand for eco-friendly formulations. Skincare brands are increasingly featuring PGA in serums, moisturizers, and masks to capitalize on its visible plumping and anti-aging effects, making it a critical ingredient for forward-thinking formulations.
Our OEM/ODM service specializes in integrating complex, functional biopolymers like PGA into stable, effective formulations. We offer the expertise to navigate the unique solubility and pH challenges of gamma-PGA, ensuring perfect stability and optimal performance across various product bases (serums, creams, toners). This deep formulation expertise, combined with highly efficient large-scale production, allows our partners to rapidly bring premium, high-demand Sodium Polyglutamate products to market without the substantial R&D overhead required to master this powerful ingredient. We are your partner for turning the advanced science of Polyglutamic Acid into a market-ready, high-performance cosmetic product.
The effectiveness of gamma-Polyglutamic Acid (gamma-PGA) is entirely dependent on its molecular weight (Mw)—a factor many suppliers offer inconsistently. Our unique selling proposition lies in our precise fermentation and purification processes, honed over nearly 20 years of biopolymer research and development experience, allowing us to offer:
For an ingredient as sensitive as PGA, our nearly two decades of experience in large-scale biopolymer manufacturing translates directly into lower risk and faster market entry for you.
| Item | Specification | Result |
|---|---|---|
| Appearance | White to off-white powder | Complies |
| Odor | Characteristic, mild | Complies |
| Taste | Slightly acidic | Complies |
| Assay (Polyglutamic Acid) | ≥98.0% (HPLC) | 99.12% |
| Molecular Weight | 1,000–2,000 kDa | 1,650 kDa |
| Moisture Content | ≤5.0% | 2.16% |
| pH (1% solution) | 5.0–7.0 | 6.3 |
| Solubility | Soluble in water, insoluble in ethanol | Complies |
| Viscosity (1% solution, 25°C) | 1,000–3,000 mPa·s | 2,230 mPa·s |
| Loss on Drying | ≤5.0% | 2.8% |
| Residue on Ignition | ≤1.0% | 0.32% |
| Heavy Metals (Pb, As, Cd, Hg) | ≤10 ppm total | <5 ppm |
| Lead (Pb) | ≤2.0 ppm | <1.0 ppm |
| Arsenic (As) | ≤1.0 ppm | <0.5 ppm |
| Cadmium (Cd) | ≤1.0 ppm | <0.5 ppm |
| Mercury (Hg) | ≤0.1 ppm | <0.05 ppm |
| Total Plate Count | ≤1,000 CFU/g | <100 CFU/g |
| Yeast & Mold | ≤100 CFU/g | <10 CFU/g |
| E. coli | Negative | Negative |
| Salmonella | Negative | Negative |
| Staphylococcus aureus | Negative | Negative |
| Particle Size | 100% pass 80 mesh | Complies |
| Bulk Density | 0.35–0.55 g/ml | 0.48 g/ml |
| Shelf Life | 24 months | Conforms |
| Storage Condition | Store in cool, dry place away from sunlight | Complies |
Used in moisturizing creams, serums, and facial masks for its superior water retention capacity. It can hold up to 5,000 times its weight in water, helping to smooth fine lines and improve skin elasticity.
Recommended dosage: 0.1–1% in water-based formulations.
Added to shampoos, conditioners, and hair masks to enhance moisture retention, smoothness, and manageability.
Recommended dosage: 0.1–0.5%.
Used in nutricosmetics for skin hydration and elasticity improvement from within. Often combined with collagen or hyaluronic acid.
Recommended dosage: 50–200 mg per serving.
Applied in wound healing dressings, drug delivery systems, and tissue engineering due to its biodegradability and biocompatibility.
Recommended dosage: varies based on formulation requirements.
Used as a natural moisturizing or texture-enhancing ingredient in functional foods and beverages.
Recommended dosage: 0.05–0.5%.
We invite you to partner with a manufacturer boasting two decades of expertise in biopolymer science, guaranteeing you access to the most stable, highest-purity gamma-PGA available. Whether you require Bulk powder supply or comprehensive OEM services to develop a finished product, our key advantage remains: precise control over molecular weight for verifiable, maximum skin hydration and film-forming performance. We back our quality and consistency with multiple international certification credentials, giving your brand a trusted foundation. Let's discuss your next breakthrough product today.
