A high-capacity biopolymer for hydration-driven formulas at production scale
Polyglutamic acid is a water-soluble biopolymer produced through fermentation, known for binding and holding significantly more moisture than conventional humectants. This is why the ingredient sits within the Moisturizing actives section, gathering raw materials built for formulas with strong hydration and barrier-supporting performance. The 1 kg pack size targets labs, contract manufacturers and skincare brands running continuous production cycles that require dependable, consistent raw material batches for serums, creams, gels and masks.
Globally, the strongest demand for polyglutamic acid comes from professional and industrial skincare manufacturing, where it appears in hydrating serums, lightweight emulsions, sheet masks and after-sun formulas. Beyond cosmetics, the compound is used across the food industry as a thickening and texture-stabilizing agent, in agriculture as part of soil conditioners that help retain moisture around plant root systems, and in pharmaceutical research for controlled drug-delivery systems and wound-care materials. This cross-industry relevance explains why the raw material remains in steady demand as a functional alternative to traditional hydrators.
In formulation, polyglutamic acid is added to the water phase during the cooling stage, at temperatures below 40 degrees, since prolonged heat reduces viscosity and moisture-binding capacity. Typical usage levels range from 0.1 to 2 percent depending on the desired texture and film-forming density on skin. The ingredient pairs well with other hydrating actives: combining it with 4D Hyaluronic Acid Hymagic creates a multi-layer hydration effect across different skin depths, while Hyaluronic acid liquid 1% adds fast-absorbing surface moisture. For formulas requiring extra conditioning and osmotic balance, manufacturers often add Betaine alongside it.
On an industrial scale, it is important to remember that the biopolymer is sensitive to strong shear forces during homogenization, so it performs best when introduced at low mixer speed toward the end of the process. Store the raw material in a tightly sealed container, in a cool, dry place away from direct sunlight and ambient moisture, since the polymer is hygroscopic and readily absorbs humidity from the air, which can affect weighing accuracy in large-batch production.
The 1 kg format is suited for conveyor-line manufacturing, reducing the frequency of reordering while keeping batch texture and performance consistent throughout an entire production run.
Lightweight hydration lotion for continuous production runs (1000 g batch)
Distilled water 880 g
Polyglutamic acid 7 g
Hyaluronic acid liquid 1% 50 g
Betaine 25 g
Glycerin 30 g
Emulsifier 5 g
Preservative 3 g
Heat
the water to 40 degrees and dissolve the glycerin and emulsifier under gentle
stirring. Once the mixture cools to room temperature, sprinkle in the
polyglutamic acid gradually while stirring continuously, then allow it to
hydrate for around 20 minutes until fully dispersed. Add the liquid hyaluronic
acid, betaine and preservative, mix on low speed until the lotion becomes smooth
and uniform, then transfer into production containers.