Science
Mechanism of Action
This derivative acts as a prebiotic, nourishing beneficial skin bacteria to strengthen the microbiological barrier and inhibit pathogenic proliferation. It also promotes skin hydration through bacterial metabolism of carbonic acids and may impart antimicrobial/antifungal effects from its undecylenoyl modification.
Research
Clinical Evidence
Medium confidence2%
Key findings
- 01 Topical application of Inulin (0.5-3%) rebalances skin microbiota, reducing pathogenic bacteria (e.g., E. coli, S. aureus) and promoting beneficial ones (e.g., S. epidermidis). This action strengthens the microbiological barrier, reduces imperfections, and promotes hydration.
- 02 An emulsion with 2% Inulin increased Staphylococcus epidermidis by 63%, stabilized skin pH to 5.0–5.3, and reduced itching and burning in 72% of subjects with atopic dermatitis after 14 days.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
For the parent compound Inulin, chemical stability is optimal in neutral and basic environments (pH ≥ 5) and decreases at pH levels ≤ 4, especially with heat. Similar pH considerations are inferred for UNDECYLENOYL INULIN.
Safety
Safety Profile
UNDECYLENOYL INULIN was listed under review by the CIR in 2014, with no specific 'safe as used' conclusion found. While the parent compound Inulin has FDA GRAS status for food, this does not directly apply to this derivative in cosmetic applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
UNDECYLENOYL INULIN is a valuable ingredient for promoting a healthy skin microbiome, enhancing hydration, and supporting overall skin barrier function, particularly suitable for all skin types.
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