Polyglucuronic Acid
A humectant polysaccharide. It draws in moisture and forms a thin soothing film. Well tolerated.
Evidence by route
Topical application
A hydrating polysaccharide. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Polyglucuronic Acid is a humectant polysaccharide built from glucuronic acid units, the same block that makes up part of hyaluronic acid. In a formula it draws water to the surface and forms a thin film that holds moisture and gives a soothing feel. It is used in serums, moisturizers and products for sensitive or dehydrated skin. It has a reasonable basis as a humectant: polysaccharides of this kind retain water and support skin comfort, so here we are talking about a useful effect, not just marketing. Even so it stays a supporting active, not a treatment that changes skin structure; it adds value as a humectant and soothing agent. With topical use it has no systemic relevance, so you can use it during pregnancy and breastfeeding. Tolerance is very good: irritation and allergy are both low, which makes it a fit for sensitive and reactive skin. It does not dry the skin or add meaningful comedogenic load.
Frequently asked questions
Is Polyglucuronic Acid safe during pregnancy?
Polyglucuronic Acid is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Polyglucuronic Acid for?
Polyglucuronic Acid suits: normal, dry, combination, oily, sensitive.
What is Polyglucuronic Acid and what does it do in cosmetics?
A humectant polysaccharide.
What's the INCI name for Polyglucuronic Acid?
The INCI name is Polyglucuronic Acid.
See Polyglucuronic Acid in a product composition right on the store page
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Ingredients in the same category
Polyglutamic Acid, Polyglycerin-3, Polyglycerin-6, Polyglyceryl-3 Distearate, Triticum Vulgare (Wheat) Seed Extract, Caprylyl Glycol, Glyceryl Polyacrylate, Isopropyl Lauroyl Sarcosinate
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