Science
Mechanism of Action
This ingredient functions by strengthening the skin's natural barrier, promoting a stable and healthy skin microbiome, and delivering humectant properties for improved hydration. The fermentation process yields a rich blend of beneficial compounds, such as amino acids, peptides, organic acids (like lactic acid for gentle exfoliation and pH maintenance), and enzymes, which collectively aid in skin renewal, repair, and protection against oxidative stress.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ferment filtrate is an aqueous solution, stable and effective in acidic to slightly acidic skincare formulations. Lactobacillus fermentation typically results in acidic conditions (below pH 4.0), and these strains thrive optimally between pH 5.0-6.0, tolerating pH as low as 3.0.
Safety
Safety Profile
The CIR Expert Panel has deemed related Lactobacillus ferments safe for cosmetic application, with reported concentrations reaching up to 5.6% in face and neck products. Ingredients derived from Camellia sinensis leaf are also considered safe when formulated to be non-sensitizing. Formulators should be aware of a potential skin-lightening effect due to tyrosinase inhibition; it should be used in a manner that prevents skin depigmentation. This ingredient consists of non-living bacterial fermentation byproducts, not live bacteria.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This multi-fermented filtrate is a valuable ingredient for comprehensive skin health, offering barrier support, microbiome balance, hydration, and antioxidant protection across all skin types.
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References
Sources