Science
Mechanism of Action
The synergistic action of this ingredient stems from the bioactive components of jujube combined with the beneficial byproducts of Lactobacillus fermentation. Jujube extracts are recognized for their anti-inflammatory, antimicrobial, and significant antioxidant capabilities, actively promoting collagen synthesis to improve skin firmness and mitigate oxidative stress. Furthermore, they enhance skin hydration and elasticity by optimizing moisture retention and minimizing trans-epidermal water loss, attributed to the presence of polysaccharides and tannins. Jujube also exhibits astringent properties, contributing to skin tightening and a refined pore appearance, while certain components may inhibit tyrosinase for a subtle brightening effect. The fermentation process enriches this profile by generating metabolites, enzymes, peptides, and organic acids, further contributing to the ingredient's potential soothing and anti-aging attributes.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The ingredient itself is stable in acidic environments; its fermentation process results in a pH shift from approximately 6.27 down to 4.26. Specific optimal pH for stability in a finished cosmetic product is not explicitly stated.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that 'Lactobacillus Ferment ingredients,' a broader category encompassing this ingredient, are safe for use in cosmetics. The highest reported maximum concentration of use for such ingredients in non-spray face and neck products, as well as other skincare preparations, is 5.6%. It is important to note that postbiotics resulting from Lactobacillus fermentation, such as lactic acid, can act as tyrosinase inhibitors, potentially leading to skin depigmentation—an effect considered a drug activity. Therefore, formulators must ensure this ingredient is used in a manner that does not induce skin depigmentation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A multifaceted ingredient derived from fermented jujube seeds, offering significant conditioning, hydration, antioxidant, and potential brightening benefits, though direct clinical data for this specific ferment are currently limited.
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References
Sources