Science
Mechanism of Action
This sophisticated ferment filtrate acts through a multi-faceted mechanism, attributed to its unique composition of Lactobacillus enzymes, potent Flavonoids (including quercetin, quercitrin, rutin, and hyperoside), Saponins, Phenolic Acids, and Polysaccharides. It significantly suppresses inflammation by blocking signaling pathways and reducing inflammatory mediators like prostaglandins and interleukins, effectively down-regulating NF-κB signals. Its robust antioxidant capacity, primarily from flavonoids and phenolic acids, provides essential protection against free radical damage and environmental stressors. The ingredient also exhibits antimicrobial properties, contributing to a balanced skin microbiome and aiding in the management of acne-causing bacteria. Polysaccharides contribute to its powerful humectant abilities, ensuring superior hydration and moisture retention. Furthermore, it actively calms skin irritations, helps to regulate excess sebum production, reinforces the integrity of the skin barrier, and the flavonoid quercitrin offers a degree of protection against UVB-induced damage.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Presented as a clear, slightly viscous liquid, this ingredient is designed for straightforward incorporation into cosmetic formulations. While specific optimal pH ranges for the final filtrate are not detailed, rigorous pH control during the initial fermentation process is crucial for enhancing stability and optimizing the bio-availability of the active compounds.
Conflicts
- Formulators must exercise caution to ensure product application does not result in unintended skin depigmentation. Certain Lactobacillus ferments possess tyrosinase inhibition effects, and significant skin lightening is classified as a drug effect.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has comprehensively assessed Lactobacillus ferment ingredients, including filtrates, concluding they are safe for use in cosmetics. The highest reported concentration of use in face and neck products (non-spray) is up to 5.6%. While generally regarded as safe for topical application, formulators are advised to adhere to established guidelines to mitigate the rare potential for allergic reactions or irritations from botanical extracts. The CIR Panel also noted the potential for certain Lactobacillus ferments to inhibit tyrosinase, mandating that formulations avoid causing skin depigmentation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
LACTOBACILLUS/HOUTTUYNIA CORDATA LEAF EXTRACT FERMENT FILTRATE is a valuable, multi-functional ingredient, offering robust hydrating, soothing, and protective benefits with a low irritancy and comedogenicity profile, making it suitable for all skin types.
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