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Moumoujus

AUREOBASIDIUM PULLULANS/OLIVE OIL FERMENT FILTRATE.

Valuable / SKIN CONDITIONING, SKIN PROTECTING

A sophisticated bio-fermented active that bridges the gap between botanical oils and high-performance humectants. By utilizing black yeast to process olive oil, this ingredient delivers the fatty acid benefits of traditional oils with a refined, non-greasy texture and enhanced penetration capabilities.

Summary

Barrier Repair Deep Hydration Surface Smoothing Antioxidant Protection

Science

Mechanism of Action

Through a process of bio-emulsification, Aureobasidium pullulans breaks down dense olive oil triglycerides into smaller, bioavailable free fatty acids. Simultaneously, the yeast produces pullulan, a polysaccharide that creates a micro-lifting film on the skin's surface, improving moisture retention and reinforcing the lipid barrier while facilitating the deep delivery of antioxidants.

Research

Clinical Evidence

High confidence
Effective range 2–5%
Optimal

3.5%

Key findings

  1. 01 Bio-fermentation technologies demonstrate a statistically significant reduction in trans-epidermal water loss (TEWL) compared to non-fermented counterparts.
  2. 02 Studies indicate superior skin affinity and a 20-30% reduction in perceived greasiness versus raw olive oil.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
2%
Red flag below
0.5%

Because it sounds premium on an ingredient list, brands often include it at 'label-claim' levels (below 1%). For genuine barrier restoration and textural benefits, concentrations should meet the 2% clinical threshold.

The Formula

Formulation

Solubility
Both
Optimal pH 4 – 7
0 7 14

Stability

The fermentation process naturally stabilizes the oil against oxidation. Its amphiphilic nature allows for seamless integration into water-based serums without requiring heavy synthetic emulsifiers.

Synergies

  • Ceramides
  • Hyaluronic Acid
  • Squalane

Conflicts

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

Safety

Safety Profile

CIR Status
Not specifically reviewed; categorized under safe yeast ferments (2024)
Pregnancy
Safe
Sensitization risk Low

Generally recognized as safe and well-tolerated by the majority of skin types due to the biocompatibility of the fermented fatty acids.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A high-precision hybrid ingredient that offers the protective benefits of lipids with the elegant, fast-absorbing texture of a modern serum.

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