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ASPERGILLUS/PEAR LEAF FERMENT EXTRACT.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A bio-optimized botanical extract derived from Japanese Pear leaves fermented with Aspergillus to maximize the bioavailability of skin-brightening phenolics. This high-performance active targets stubborn discoloration and promotes a radiant 'Tsuya' glow by harmonizing melanin production and removal.

Skin Brightening Antioxidant Soothing Melanin Inhibition

Science

This extract employs a multi-pathway approach to luminosity by acting as a natural tyrosinase inhibitor, leveraging the high arbutin content of Pyrus pyrifolia. It inhibits the biosynthesis of new melanin, chemically reduces the pigment intensity of existing dark spots, and accelerates the skin's natural turnover process to release accumulated melanin from the surface.


Research

High confidence
Effective range 1–5%
Optimal

3%

Key findings

  1. 01 In-vitro analysis demonstrated an 87% reduction in pigmentation markers within 28 days when utilized in a concentrated complex.
  2. 02 Technical trials by Katakura & Co-op Agri Corp confirmed triple-action inhibitory activity against pigmentation at concentrations between 1% and 5%.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.5%

To achieve the documented 'whitening' effect and melanin release, concentrations below 1.0% are generally insufficient. Many commercial products include it at low levels for 'claim' purposes without reaching the clinical threshold required for pigment correction.


The Formula

Solubility
Water
Optimal pH 4.5 – 6.5
0 7 14

Stability

Highly stable in aqueous systems and emulsions; requires protection from direct light and excessive heat to maintain the integrity of its phenolic compounds.

Synergies

  • Niacinamide
  • Vitamin C
  • Alpha-hydroxy acids (AHA)
  • Hyaluronic Acid

Conflicts

  • Strong oxidizing agents
  • Extreme pH environments (below 3.0 or above 8.0)

Safety

CIR Status
Not explicitly reviewed
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Safety is supported by the established profile of its arbutin and ferment components. It aligns with SCCS guidelines for beta-arbutin safety limits in facial care.


Your Skin

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

Our Assessment

Valuable

An exceptionally effective, low-irritation alternative to synthetic brighteners that excels at both preventing and reversing visible sun damage.


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