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LACTOBACILLUS/CHESTNUT CUPULE FERMENT EXTRACT FILTRATE.

Valuable / ANTIOXIDANT, HUMECTANT, SKIN CONDITIONING

This advanced precision-fermented ingredient harnesses the synergistic benefits of Lactobacillus and chestnut cupules. It effectively transforms complex biomolecules into readily absorbable compounds, such as peptides, organic acids, and antioxidants, to optimize skin health. Its primary functions include strengthening the skin barrier, enhancing deep hydration, and providing robust antioxidant and anti-inflammatory support.

Summary

Antioxidant Humectant Skin conditioning

Science

Mechanism of Action

As a precision-fermented ingredient, it meticulously breaks down larger biomolecules into smaller, highly bioavailable compounds like amino acids, peptides, organic acids (including lactic acid), enzymes, and potent antioxidants, facilitating optimal absorption by the skin. Acting as a prebiotic, it diligently balances and nurtures the skin's microbiome by fostering beneficial bacterial growth and reinforcing natural defense mechanisms. This process robustly strengthens the epidermal barrier, significantly improves hydration through enhanced moisture retention, and delivers anti-inflammatory effects to soothe irritation. The chestnut cupule component contributes a rich profile of phenols and flavonoids, whose antioxidant capabilities are amplified through fermentation, providing superior protection against oxidative stress and environmental damage while promoting cellular renewal and refined skin tone.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Direct clinical studies with precise effective topical concentrations for LACTOBACILLUS/CHESTNUT CUPULE FERMENT EXTRACT FILTRATE are not widely published. However, research on closely related ingredients provides strong indications of efficacy. Manufacturer studies on 'Lactobacillus Ferment Filtrate' demonstrate its ability to foster beneficial skin bacteria, thereby enhancing natural skin barrier function and significantly improving skin texture by reducing roughness and dryness.
  2. 02 Other Lactobacillus extracts have been observed to dose-dependently stimulate beta-defensin production in skin cells, with activity most prominent at cell concentrations of at least 1x10^9 to 1x10^10.
  3. 03 In vitro investigations into fermented chestnut inner shell extracts (not specifically Lactobacillus ferment) have revealed enhanced cell viability and notable antioxidant activity at concentrations of 125, 250, and 500 μg/mL.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

This ingredient, typical of fermented extracts, may be sensitive to extreme heat. Some 'Lactobacillus' strains thrive between 30-40°C. The fermentation process naturally yields organic acids, such as lactic acid, which contribute to maintaining a healthy skin pH environment.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5.6%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed 'Lactobacillus Ferment', 'Lactobacillus Ferment Filtrate', 'Lactobacillus Ferment Lysate', and 'Lactobacillus Ferment Lysate Filtrate' safe for use in cosmetic applications. The maximum reported concentration for a related ingredient, 'Lactobacillus Ferment', is up to 5.6% in face and neck products, excluding spray applications. Ames assays for similar Lactobacillus ferment ingredients revealed no genotoxic effects.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

This fermented extract offers a multi-faceted approach to skin health, delivering prebiotic, barrier-strengthening, hydrating, and antioxidant benefits, making it a valuable addition to precision skincare formulations.

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