Polyglucuronic Acid

Benefits
Moisturizing

What is Polyglucuronic Acid?

Polyglucuronic acid is a high-molecular-weight, anionic polysaccharide produced through microbial fermentation, typically from plant-derived substrates like soybean hulls. Chemically, it consists of repeating glucuronic acid units linked linearly, giving it exceptional water-binding properties. In cosmetics, it appears in moisturizers, serums, and creams targeting hydration. It functions by drawing water into the skin's upper layers and creating a lightweight, breathable film that minimizes transepidermal water loss while allowing skin to breathe. This dual action supports skin barrier integrity without greasiness, making it suitable for daily use in various formulations. Derived biotechnologically, it offers a sustainable alternative to traditional humectants, enhancing product texture and efficacy in water-based products.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Delivers deep hydration by binding large amounts of water to the skin.

Forms a subtle film to lock in moisture and protect against dryness.

Improves skin texture and softness through conditioning effects.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or dehydrated skin seeking long-lasting moisture.
People with known allergies to fermented polysaccharides.
People looking for lightweight hydration in daily routines.
Individuals sensitive to film-forming agents in high concentrations.
Those preferring biotech-derived ingredients for gentle care.
Those preferring oil-free textures without any coating sensation.

Safety Notes

  • Rated low hazard by safety assessments, suitable for most skin types.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Polyglucuronic Acid

What is polyglucuronic acid?

A biotech polysaccharide from fermentation that hydrates skin by binding water and forming a film.

Is it safe for sensitive skin?

Generally low irritation potential based on safety data, suitable for broad use.

How does it differ from other humectants?

Offers superior water-holding and film-forming for enhanced moisture retention.