Science
Mechanism of Action
This ingredient functions as a potent humectant, efficiently attracting and attaching water molecules to the stratum corneum, thereby enhancing skin hydration. It actively stimulates the skin's intrinsic repair mechanisms and acts as a film-forming agent, creating a smooth surface that reduces transepidermal water loss. Furthermore, it serves as a critical precursor for the synthesis of key dermal components like laminin-5 and hyaluronic acid, augmenting the skin's capacity for sustained water retention.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyglucuronic acid (specifically its sodium salt, (1→3)-β-polyglucuronic acid Na salt) demonstrates robust stability in aqueous solutions across a broad pH range of 1 to 9, maintaining integrity without depolymerization for up to 128 hours at room temperature. Minor depolymerization was observed only at more extreme alkaline conditions, specifically pH 11 and 13.
Safety
Safety Profile
Generally recognized as safe for cosmetic applications, Polyglucuronic acid exhibits excellent skin tolerability. It is rated 'LOW' by EWG Skin Deep for concerns including cancer, allergies, immunotoxicity, developmental and reproductive toxicity, and is absent from EWG's Restricted or Unacceptable Lists. The Good Scents Company further corroborates its safety profile, indicating no GHS hazard or precautionary statements.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyglucuronic acid is a valuable hydrating and anti-aging ingredient, demonstrating broad skin compatibility and a robust safety profile, making it suitable for enhancing skin moisture and reducing visible signs of aging.
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