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ASPERGILLUS/SACCHAROMYCES/RICE LEES FERMENT FILTRATE.

Valuable CAS - / HUMECTANT, SKIN CONDITIONING

A sophisticated dual-fermented bioactive extract derived from the nutrient-rich sediment of rice brewing. This precision ingredient acts as a cellular nutrient broth, delivering a concentrated profile of amino acids and peptides to optimize skin barrier health and luminosity.

Bioactive Humectant Skin Conditioner Collagen Booster Brightening Agent

Science

It functions as a biological signaling agent that upregulates the mRNA levels of Hyaluronan Synthase 1 (HAS1) and Aquaporin 3 (AQP3), enhancing the skin's internal hydration network. Simultaneously, it stimulates Filaggrin expression to reinforce the physical barrier and inhibits tyrosinase activity to modulate melanin production while promoting fibroblast proliferation for improved structural density.


Research

High confidence
Effective range 0.25–5%
Optimal

1.25%

Key findings

  1. 01 At 1.25%, the filtrate demonstrates significant upregulation of HAS1 and AQP3, leading to measurable increases in epidermal water content.
  2. 02 A 0.25% concentration paired with Sialic Acid has been shown to boost Type I collagen synthesis (COL1A1) by approximately 198%.
  3. 03 Concentrations of 5.0% exhibit potent tyrosinase inhibition and melanin suppression in melanocytes.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.1%

While this ingredient provides collagen support at 0.25% when combined with synergists, its primary hydration and brightening benefits require concentrations above 1.0%. Formulations listing it near the end of the INCI deck often fail to meet the clinical threshold for its multi-microbial benefits.


The Formula

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Heat-sensitive; must be incorporated during the cool-down phase (below 40°C) to preserve the integrity of bioactive peptides and enzymatic components.

Synergies

  • Sialic Acid
  • Hyaluronic Acid
  • Niacinamide

Conflicts

  • Strong oxidizing agents
  • Extreme pH environments below 3.0 or above 9.0

Safety

CIR Status
Safe as used
Max tested
100%
Pregnancy
Safe
Sensitization risk Low

Both Aspergillus and Saccharomyces microorganisms are food-grade and GRAS-certified, making this extract exceptionally well-tolerated.


Your Skin

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

Our Assessment

Valuable

An exceptional multi-tasking ferment that provides scientifically validated improvements in hydration, collagen density, and tone clarity when used at clinical levels.


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