Science
Mechanism of Action
This ingredient functions as a probiotic complex, supporting the skin's natural microbiome by delivering prebiotics that nourish beneficial microflora. Through Lactobacillus fermentation, it generates antimicrobial peptides, specifically bacteriocins, which selectively target and reduce harmful bacteria. The unique fermentation process with coconut fruit enhances the bioavailability of natural phytocompounds and contributes natural antifungal properties, partly attributed to its Lauric Acid content. Furthermore, it acts as a humectant and skin-conditioning agent, promoting cellular renewal, strengthening the epidermal barrier, and enhancing skin resilience.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Increased moisturization over three weeks in an in-vivo study at 2.0% concentration.
- 02 Demonstrated significant broad-spectrum antimicrobial activity in challenge tests against E. coli, P. aeruginosa, S. aureus, A. brasiliensis, and C. albicans, at 2-4% concentration over 28 days, even after re-inoculation.
Transparency
Dusting Analysis
This ingredient is a liquid ferment filtrate and is not typically associated with 'dusting' concerns common with powder ingredients.
The Formula
Formulation
Stability
Can be incorporated into water-based formulations or the water phase of emulsions. For optimal stability, it is recommended to add at temperatures below 70°C (158°F). Specifically, the Leuconostoc Ferment Extract component should be added during the cooling phase, below 60°C (140°F), prior to the addition of thickeners.
Conflicts
- Highly anionic ingredients, particularly certain thickeners, may exhibit incompatibility with the Leuconostoc Ferment Extract component.
Safety
Safety Profile
The CIR Expert Panel has affirmed the safety of Lactobacillus Ferment and related filtrates for cosmetic use, with reported applications up to 5.6% in leave-on skin products. It is extensively categorized as free from common irritants and allergens, including parabens, fragrances, gluten, soy, and dyes, supporting its low irritancy profile. No genotoxicity has been observed in Ames assays with related ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is a valuable addition for its proven moisturization, broad-spectrum antimicrobial and antifungal protection, and ability to support the skin's microbiome and barrier, all within a highly compatible and safe profile.
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