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SACCHAROMYCES/HYDROLYZED RICE FERMENT FILTRATE.

Valuable / ANTI-SEBUM, ASTRINGENT, HUMECTANT, SKIN CONDITIONING

Saccharomyces/Hydrolyzed Rice Ferment Filtrate is a bio-fermented ingredient, combining yeast and rice to deliver a rich profile of nutrients, amino acids, and antioxidants. It is engineered to enhance skin vitality by boosting hydration, stimulating collagen synthesis, and fortifying the skin's inherent resilience against environmental aggressors.

Summary

Humectant Skin Conditioning Antioxidant Anti-inflammatory Collagen Booster Gentle Exfoliant Astringent Anti-sebum Skin Barrier Support

Science

Mechanism of Action

This ingredient acts through multiple pathways to revitalize the skin. It delivers essential nutrients and powerful antioxidants, which collectively mitigate inflammation, promote collagen production, and improve skin elasticity. Specifically, it enhances collagen mRNA stability by modulating HuR within the IL-17 signaling pathway and increases skin cell resistance to both inflammatory responses and oxidative stress. Its rich composition of vitamins, minerals, amino acids, small molecular peptides, and polysaccharides deeply hydrates, nourishes, and helps to restore the skin barrier by elevating levels of hyaluronic acid and aquaporin 3. It also facilitates gentle exfoliation by stimulating lactic acid production, encouraging healthy cell turnover, and improving microcirculation. For acne-prone skin, it can aid in reducing pore size and decreasing oil production, while its ability to harmonize the skin's microflora soothes irritated skin.

Research

Clinical Evidence

Medium confidence
Effective range 0.05–0.8%
Optimal

N/A

Key findings

  1. 01 An in vitro study demonstrated that Saccharomyces/Rice Ferment Filtrate (RFF) alone modestly increased COL1A1 gene expression (a marker for type I collagen). When combined with Sialic Acid (SA) at concentrations between 0.05% and 0.8%, collagen expression in HFF-1 cells was significantly enhanced. RFF also improved skin cell resistance to inflammatory responses and oxidative stress within this study.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Fermentation processes typically lead to more stable, pH-balanced formulations for fermented rice ingredients. While specific optimal pH for this ingredient is not definitively stated, studies on yeast proteins (Saccharomyces cerevisiae) indicate optimal emulsion stabilization around pH 3.5-4.0.

Synergies

  • Sialic Acid (SA) significantly enhances collagen expression when combined with Saccharomyces/Hydrolyzed Rice Ferment Filtrate.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel is currently conducting a safety assessment of yeast-derived ingredients, which includes the closely related Saccharomyces Ferment Filtrate. As of November 2023, the Panel issued a second 'Insufficient Data Announcement' requesting confirmatory dermal sensitization data and information on its GRAS (Generally Recognized As Safe) status. Despite this, Saccharomyces/Rice Ferment Filtrate is broadly considered safe with no reported side effects, and fermented rice ingredients are noted for their mildness, which may reduce the risk of irritation or allergic reactions.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

This multi-functional fermented ingredient offers significant hydrating, anti-aging, and skin-strengthening benefits, suitable for all skin types, making it a valuable component in precision skincare formulations despite ongoing safety assessment by CIR.

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