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POLYDEXTROSE.

Valuable CAS 68424-04-4 / BULKING, HUMECTANT

Polydextrose is a multifaceted polysaccharide noted for its hygroscopic properties, effectively attracting and retaining moisture on the skin. Beyond hydration, it serves as a sophisticated texture modifier and formula stabilizer, enhancing the tactile experience of skincare formulations.

Humectant Emollient Moisturizer Bulking Agent Texture Enhancer Film-Forming Thickening Agent Formula Stabilizer Solubility Enhancer

Science

Operating primarily as a humectant, Polydextrose actively maintains the stratum corneum's hydration levels. Concurrently, it functions as a bulking agent, optimizing cosmetic density, while also improving formulation texture, stability, and facilitating the solubilization of challenging active ingredients like salicylic acid. It further contributes as a rheology modifier, imparting thickening effects.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 2.5 – 7
0 7 14

Stability

Demonstrating high water solubility and miscibility, Polydextrose is suitable for concentrations up to 80% w/w at 20°C. It exhibits exceptional thermal stability and maintains integrity across a broad pH spectrum, notably stable under acidic conditions.

Synergies

  • Enhances solubility of challenging active ingredients (e.g., salicylic acid)

Safety

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel affirms Polydextrose's safety for topical cosmetic applications, aligning with its established safety profile as an FDA-approved food additive. No concentration restrictions are currently mandated.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

Polydextrose is a valuable multifunctional ingredient, offering significant benefits in skin hydration, formulation texture, and stability across a wide range of cosmetic products, with a robust safety profile and broad skin compatibility.


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