PolyGlutamic Acid (γ-PGA), Purity 99%, Cosmetic Grade

Molecular Weight: 5k Da
Weight: 100g (3.5 oz)
Sale price$136.00


MarkNature's Cosmetic Grade Gamma-Polyglutamic Acid (γ-PGA) is a naturally derived amino acid polymer meticulously crafted for cosmetic applications. Extracted through an advanced fermentation and purification process, this premium γ-PGA offers multifaceted utility across diverse industries like cosmetics, food, medicine, agriculture, and water treatment. Specifically designed for skincare formulations, it excels in enhancing moisture retention, surpassing conventional hyaluronic acid in certain aspects. As an effective cosmetic ingredient, γ-PGA significantly improves moisture binding, elevating its efficacy in various skincare products.

CAS Number: 25513-46-6
Chemical Formula: [C5H9NO4]n
Molecular Weight: 5,000 Da or 700k to 1,000k Da
Solubility: Water soluble
Appearance: White to off-white powder
Assay: 92% min.
Transmittance: 95.0% min.
Loss on drying: 8.0% max.
PH(1% solution): 5.0~7.0
Heavy metals [Pb]: 15ppm max.

Key Features:

  • Natural amino acid polymer derived from advanced fermentation
  • Superior moisture binding and retention properties
  • Versatile application in cosmetics, food, medicine, agriculture, and water treatment


  1. Enhances moisture retention in skincare formulations
  2. Suitable for a wide range of cosmetic products aimed at improving skin hydration
  3. Offers potential in various industries including food, medicine, agriculture, and water treatment

Diverse Functions of Polyglutamic Acid (PGA) in Skincare
Polyglutamic Acid (PGA) offers various molecular weights, each serving distinct roles in skincare. With a molecular weight around 5k Da, PGA ensures easy skin penetration and absorption, while PGA-Oligo effectively combats free radicals, repairs photoaging, and rejuvenates the skin. On the other hand, higher molecular weights (ranging from 700k to 1000k Da) enhance water retention, ensuring optimal skin moisturization. These varied molecular weights cater to specific skincare needs, providing multifaceted benefits.


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