Science
Mechanism of Action
LACTOBACILLUS/SUGAR CANE EXTRACT FERMENT FILTRATE operates primarily as a prebiotic, fostering a healthy skin microbiome by encouraging beneficial bacterial growth and fortifying the skin's natural defenses against detrimental microorganisms. Its humectant properties enable it to bind water, improving skin hydration and strengthening the epidermal barrier. The ferment filtrate provides calming effects, reducing inflammation and irritation, and is enriched with nourishing vitamins and minerals that refine skin texture. It also exhibits antioxidant capabilities, combating free radical damage, and its metabolites can inhibit tyrosinase activity to diminish hyperpigmentation and brighten skin tone. Furthermore, certain Lactobacillus extracts have demonstrated the capacity to stimulate beta-defensin production in skin cells, enhancing the skin's natural immune response.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In an in-vivo study involving 5 participants, a related ingredient, Lactobacillus Ferment Lysate Filtrate, demonstrated a 47% reduction in redness at a 5% concentration.
- 02 Clinical studies by the manufacturer (Evonik) indicate that a related Lactobacillus extract filtrate promotes the growth of beneficial skin bacteria, supports barrier function, and helps prevent skin roughness and dryness.
- 03 Metabolites from Lactobacillus ferment are known to inhibit tyrosinase, the enzyme crucial for melanin synthesis, which contributes to reducing hyperpigmentation and enhancing skin brightness.
- 04 Studies using related Lactobacillus extracts showed stimulation of beta-defensin production in skin cell cultures in a dose-dependent manner (e.g., 1x10^9 to 1x10^10 bacteria equivalent).
- 05 Related topical compositions with Lactobacillus plantarum extract significantly reduced both inflamed and non-inflamed acne lesions over six weeks and decreased skin sensitivity over two months.
Transparency
Dusting Analysis
This ingredient is a water-soluble ferment filtrate, not typically prone to 'dusting' or inclusion at concentrations solely for marketing claims without functional benefit. Its role is primarily active and formulation-driven.
The Formula
Formulation
Stability
Optimal stability is observed within a pH range of 4.0 to 5.0 for Lactobacillus Ferment. It can be directly incorporated into aqueous formulations, provided the temperature remains below 50°C.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed various Lactobacillus Ferment derivatives, including Ferment, Ferment Filtrate, Ferment Lysate, and Ferment Lysate Filtrate, safe for use in cosmetic products. The highest reported concentration for Lactobacillus Ferment in face and neck products (non-spray) and other skincare is 5.6%, while for makeup bases, it is up to 1.5%. No SCCS status was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ferment filtrate is a valuable multifunctional ingredient, offering significant benefits for microbiome balance, hydration, soothing, and skin brightening across all skin types, with a strong safety profile.
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References
Sources