Science
Mechanism of Action
The Leuconostoc component, derived from lactic acid bacteria, functions as an innate antimicrobial and preservative, effectively moderating microbial proliferation within formulations. It additionally serves as a moisturizing and conditioning agent, with certain iterations potentially containing salicylic acid beneficial for addressing problematic skin conditions. The Morus Bombycis, or Japanese mulberry, contributes a rich profile of antioxidants, including flavonoids and anthocyanins, which actively neutralize free radicals to mitigate oxidative stress and diminish visible signs of aging. Furthermore, its arbutin content, a hydroquinone derivative, precisely inhibits tyrosinase activity, thereby reducing melanin synthesis for targeted skin lightening and enhanced complexion uniformity. As a holistic skin conditioning agent, it supports epidermal softness, smoothness, and sustained hydration by reinforcing the skin's protective barrier.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This water-soluble extract demonstrates stability across a pH spectrum of 3.0 to 8.0. For optimal integration, incorporation is advised during the cooling phase of formulation, specifically at temperatures below 60°C (140°F), and prior to the addition of thickening agents.
Conflicts
- highly anionic ingredients
- thickeners
Safety
Safety Profile
While no dedicated Cosmetic Ingredient Review (CIR) Expert Panel, SCCS, or FDA assessment exists for this specific ingredient, related ferment filtrates like 'Leuconostoc/Radish Root Ferment Filtrate' have been deemed non-genotoxic, non-sensitizing (at 10% dilution and 0.04% in formulations), and non-ocular irritant. The U.S. FDA generally regards lactic acid fermentation products as GRAS for food applications, with Leuconostoc being an approved bacterial strain. This ingredient is generally regarded as non-toxic, non-irritating, and non-sensitizing. A separate mulberry species, Morus alba, in a 75% extract oil, showed a negative repeat open application test, though a minority of subjects reported mild transient itching.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This multifunctional fermented extract offers significant benefits, including natural preservation, antioxidant protection, and skin brightening, making it a valuable addition for a range of skin concerns and product formulations.
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