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BACILLUS/DIOSPYROS KAKI LEAF/SOYBEAN FERMENT EXTRACT FILTRATE.

Valuable CAS - / ANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, SKIN CONDITIONING

A high-performance bio-ferment that merges the antioxidant potency of Persimmon (Diospyros kaki) leaves with the nutrient-dense profile of Soybeans. Utilizing Bacillus subtilis fermentation, this complex delivers a concentrated array of bioactive peptides and tannins designed to refine skin texture and bolster environmental resilience.

Antioxidant Antimicrobial Pore Refiner Skin Conditioner Astringent

Science

This ingredient operates through a four-tier biological pathway: it neutralizes oxidative stress via soy-derived isoflavones and persimmon tannins, regulates sebum production through natural astringency, inhibits bacterial growth with fermentation-derived lipopeptides, and reinforces the skin barrier by providing small-chain amino acids that support the Natural Moisturizing Factor (NMF).


Research

High confidence
Effective range 0.1–5%
Optimal

1%

Key findings

  1. 01 A 4-week clinical evaluation demonstrated a 31.84% reduction in pore volume and a 29.57% decrease in visible pore size.
  2. 02 In vitro testing confirmed significant inhibition of collagenase and tyrosinase, pointing to structural preservation and pigment regulation.
  3. 03 Significant improvements in skin elasticity and antioxidant activity were recorded in patent-supported trials.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.1%

While measurable benefits for enzymatic inhibition occur at 0.1%, the structural and pore-refining results seen in clinical trials require a concentration of at least 1%. Formulas using this below 1% may only provide basic antioxidant support rather than corrective results.


The Formula

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

Highly stable in standard aqueous systems and oil-in-water emulsions. It is thermolabile and should not be exposed to temperatures exceeding 50°C during manufacture to preserve bioactive peptides.

Synergies

  • Niacinamide
  • Hyaluronic Acid
  • Non-anionic surfactants

Conflicts

  • Strong oxidizing agents
  • High-concentration anionic surfactants
  • Highly alkaline formulations (pH > 8.0)

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

The ingredient is non-irritating and non-sensitizing, making it suitable for prolonged use in leave-on applications.


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 pore reduction and skin brightening with an excellent safety profile for all skin types.


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References