Science
Mechanism of Action
Through fermentation, this ingredient yields smaller, more bioavailable molecules that are thought to penetrate deeper into the skin, establishing moisture reservoirs. It acts as a natural antioxidant, neutralizing free radicals known to accelerate skin aging. The filtrate is rich in beneficial compounds such as polysaccharides, peptides, essential minerals, amino acids, beta-glucan, and vitamins, which collectively nourish the skin. It supports skin regeneration, aids in restoring the protective barrier, enhances elasticity and radiance, and possesses soothing properties to mitigate redness and irritation. Its adaptive nature allows it to moisturize dry skin effectively while also assisting in sebum regulation for oily skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Maintains optimal efficacy within the pH range of 5.0 to 7.0. For best stability and to preserve active compounds, it should be incorporated into formulations during the cool-down phase, specifically when temperatures are below 40°C.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed 'Saccharomyces Ferment Filtrate' safe for cosmetic use, with reported concentrations typically up to 2%. Its safety profile is supported by GRAS (Generally Recognized As Safe) status for the yeast component by the FDA (up to 5% in food), its endogenous nature, and an absence of positive alerts in various toxicological studies at cosmetic-relevant doses. Reproductive effects observed in an oral mouse study were at significantly higher doses and are considered irrelevant for topical cosmetic application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This fermented ingredient is a valuable active, offering broad benefits from antioxidant protection and deep hydration to skin regeneration and soothing, suitable for all skin types and deemed safe for cosmetic use.
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References
Sources