Science
Mechanism of Action
This ingredient primarily functions as a prebiotic, nourishing beneficial cutaneous bacteria to foster a balanced skin microbiome, thus reinforcing the skin barrier and mitigating irritation. Concurrently, it serves as a humectant, actively attracting atmospheric moisture and retarding transepidermal water loss (TEWL) for sustained hydration. Furthermore, its chelating capabilities sequester metal ions, safeguarding formulation integrity and aesthetic appeal. It also contributes to product texture as a viscosity regulator.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Carboxymethyl Inulin exhibits robust performance across a broad pH range of 5.0 to 12.0 and varied temperature conditions. Its anionic structure confers excellent dispersibility and tolerance to electrolytes. The parent compound, Inulin, remains chemically stable in neutral to basic environments (pH ≥ 5) irrespective of heating, though stability declines below pH 4, particularly with elevated temperatures.
Conflicts
- Contact with strong oxidants (in solid form, can cause to burn)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of most polysaccharide gums, including Sodium Carboxymethyl Inulin, under current cosmetic usage and concentrations. Toxicological assessments on Carboxymethyl Inulin reveal no adverse effects in rats at high oral doses (up to 1000 mg/kg/day) and no evidence of dermal sensitization in guinea pigs. Its parent compound, Inulin, is recognized as Generally Recognized As Safe (GRAS) by the FDA as a direct food additive.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A versatile ingredient that significantly contributes to skin hydration and microbiome health, supported by a robust safety profile and beneficial formulation properties.
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