Science
Mechanism of Action
Gellan Gum exerts its primary effects through its unique rheological properties, forming intricate gel structures or increasing the viscosity of cosmetic formulations to achieve desired textures and consistency. It possesses excellent water-binding capabilities, which contribute to enhanced skin hydration by forming a protective film that minimizes transepidermal water loss. This film-forming action additionally aids in retaining active ingredients on the skin's surface for extended periods, potentially improving their absorption and efficacy. Furthermore, Gellan Gum stabilizes emulsions and suspensions, preventing ingredient separation and imparting a smooth, non-greasy application with a pleasant skin feel.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
Gellan Gum is a functional ingredient primarily valued for its rheological and stabilizing properties in formulation, not typically an active ingredient whose percentage is 'dusted' for marketing claims.
The Formula
Formulation
Stability
Gellan Gum demonstrates robust stability across a wide pH range, specifically from 3.4 to 8.0, and exhibits good heat stability, which is critical for maintaining product integrity during manufacturing and storage. It is typically dissolved in the water phase under heat, usually between 80-90°C, and subsequently cooled to form a gel-like structure. The presence of ionic salts, particularly calcium, is often essential to trigger the desired gelation process. Formulators can select between different types (high acyl vs. low acyl) to achieve a spectrum of textures, ranging from soft and elastic to firm and brittle gels.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) panel has thoroughly assessed Gellan Gum, concluding it is nontoxic and safe for use in cosmetic formulations. Supporting this, human oral studies at concentrations up to 200 mg/kg/day over 16 days reported no adverse dietary, physiological, or allergenic effects. Gellan Gum has received approval from the FDA as a food additive (E418) and for cosmetic and pharmaceutical applications, with the European Food Safety Authority (EFSA) also concluding no safety concern.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Gellan Gum is a valuable formulation component that enhances product texture and stability while offering significant hydrating benefits and supporting optimized active ingredient delivery for a wide range of skin types.
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References
Sources