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AUREOBASIDIUM PULLULANS/MAGNOLIA SIEBOLDII BRANCH EXTRACT FERMENT FILTRATE.

Valuable / BLEACHING

A high-performance bio-fermented complex that merges the pigment-inhibiting properties of Magnolia Sieboldii with the barrier-restoring benefits of black yeast fermentation. This filtrate delivers concentrated polyphenols and polysaccharides to target uneven skin tone while simultaneously optimizing the skin's moisture reservoir.

skin brightening moisturizing soothing antioxidant

Science

This ingredient utilizes a dual-action pathway: it inhibits tyrosinase activity to prevent the overproduction of melanin, while the fermentation process generates Beta-Glucans and Pullulan. These extracellular polysaccharides reinforce the epidermal barrier and enhance the bioavailability of anti-inflammatory polyphenols like magnolol and honokiol.


Research

High confidence
Effective range 1–5%
Optimal

2.5%

Key findings

  1. 01 In vitro testing demonstrated superior tyrosinase inhibition and melanin suppression compared to traditional arbutin at a 1.0% concentration.
  2. 02 Clinical evaluation of the fermented complex at 2.0-5.0% showed a 15.5% improvement in skin tone uniformity alongside significant refinements in surface texture.

Transparency

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

Due to its complex INCI name and premium cost, brands may include it at 'label-claim' levels (below 1%). At least 1% is required for pigment-modulating efficacy, with 2% or higher preferred for clinical texture improvements.


The Formula

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Maintains peak structural integrity and efficacy in aqueous environments near a skin-neutral pH of 5.5.

Synergies

  • Vitamin C
  • Niacinamide
  • Hyaluronic Acid

Conflicts

  • Strong oxidizing agents
  • Extreme pH environments (<3.0 or >9.0)

Safety

CIR Status
Safe as used
Pregnancy
Safe
Sensitization risk Low

Classified as safe based on CIR assessments of yeast-derived ferments and Magnolia extracts; the fermentation process often reduces the allergenic potential of botanical extracts.


Your Skin

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

Our Assessment

Valuable

A sophisticated multi-tasker that outperforms standard brighteners by combining melanin control with advanced probiotic barrier support.


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References