Science
Mechanism of Action
The precision fermentation process breaks down complex raw materials into smaller, highly bioavailable molecules, including a rich profile of amino acids, peptides, organic acids (such as lactic acid), enzymes, and potent phenolic acids (like ferulic acid). This molecular transformation allows for deeper skin penetration and the creation of enduring moisture reservoirs. It functions as a powerful humectant, drawing and retaining water, while also demonstrating significant anti-inflammatory action by reducing key markers such as IL-8. Beyond hydration, it actively supports a stable skin microbiome, reinforces the natural barrier function, provides critical antioxidant protection against environmental aggressors, and stimulates healthy cell renewal.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Clinical data for related ferment filtrates at 0.5-3% demonstrated a remarkable 300% increase in moisture retention compared to glycerin, maintaining sustained hydration for up to 8 hours. Significant improvements in facial skin hydration were observed after 4 and 8 weeks, with similar positive effects on forearm skin within 4 weeks. Furthermore, this range reduced IL-8, a crucial inflammatory marker, by over 10%.
- 02 At 5%, research indicated an anti-acne effect, reducing the size and redness of lesions by inhibiting harmful bacteria and fostering a balanced skin microflora.
- 03 A 1% concentration was shown to reduce overall skin sensitivity.
Transparency
Dusting Analysis
Clinical efficacy has been observed at concentrations as low as 0.5%, demonstrating significant hydration and anti-inflammatory benefits. While higher concentrations (up to 5%) deliver additional targeted effects like anti-acne action, any formulation containing this ingredient below 0.5% warrants scrutiny, as it may be insufficient to achieve the primary clinically validated outcomes.
The Formula
Formulation
Stability
Maintains its full efficacy and stability within a precise pH range of 5.0 to 7.0.
Safety
Safety Profile
The CIR Panel has concluded that Lactobacillus Ferment ingredients, including filtrates, are safe for use in cosmetics. The highest reported concentration in face and neck products (non-spray) is 5.6%. This ingredient has a low irritation potential, with 100% concentrations considered non-irritating in EpiOcular assays, and zero adverse effects documented in clinical trials for related ferment filtrates. A theoretical concern regarding skin lightening due to tyrosinase inhibition (a drug effect) is mitigated when the ingredient is appropriately formulated for cosmetic applications to avoid unintended depigmentation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This multi-functional fermented filtrate is an essential component in precision skincare, delivering superior, sustained hydration, robust barrier reinforcement, and significant anti-inflammatory and microbiome-balancing benefits across all skin types.
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References
Sources