Science
Mechanism of Action
Lactobacillus ferment filtrates operate by supporting the skin's delicate microbiome and reinforcing the epidermal barrier. The fermentation process enriches the extract with a blend of beneficial compounds, including amino acids, peptides, organic acids (such as lactic acid), enzymes, and antioxidants. These components work synergistically to improve hydration through humectant action, promote cellular renewal, help stabilize skin pH, and deliver anti-inflammatory and antimicrobial effects. This multifaceted action can also aid in potential DNA repair and offers broad antioxidant protection. The integration of Eleuthero root extract, a recognized adaptogen, further enhances the skin's intrinsic capacity to adapt and resist various environmental stressors.
Research
Clinical Evidence
Medium confidence5%
Key findings
- 01 A small in-vivo study (5 participants) demonstrated a 47% reduction in skin redness with 5% Lactobacillus Ferment Lysate Filtrate. In vitro studies further indicated promotion of oxygen uptake, collagen production, and ATP synthesis.
- 02 1% Lactobacillus ferment was observed to effectively reduce skin sensitivity.
- 03 At 5%, Lactobacillus ferment exhibited significant anti-acne efficacy, reducing acne lesion size and redness more rapidly than salicylic acid.
Transparency
Dusting Analysis
The provided research data does not indicate this ingredient is commonly 'dusted' or used at ineffectively low concentrations.
The Formula
Formulation
Stability
This water-soluble ingredient should be incorporated into aqueous formulations at temperatures below 50°C. If utilized for its potential preservative properties, it typically requires a complete preservation system involving pH control or co-preservatives to ensure efficacy.
Safety
Safety Profile
The CIR Expert Panel concluded that various Lactobacillus ferment ingredients are safe as used in cosmetics, with reported concentrations up to 5.6% in leave-on face and neck products. However, their safety assessment did not specifically include 'Eleuthero Root Extract' in combination with the ferment filtrate.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This multifaceted ingredient is valuable for its proven ability to support the skin microbiome, reduce redness and sensitivity, and improve overall skin resilience, making it suitable for a wide range of skin concerns.
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References
Sources