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AUREOBASIDIUM PULLULANS FERMENT FILTRATE.

Valuable / HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

A high-performance bio-ferment derived from 'Black Yeast,' this filtrate is rich in complex polysaccharides like pullulan and beta-glucans. It serves as a multifunctional restorative agent that provides both an immediate structural lifting effect and long-term cellular revitalization.

Moisturizing/Humectant Skin-Conditioning Anti-Aging Barrier Protection Biological Lifting

Science

This ingredient operates through a dual-action pathway: it creates a breathable, high-molecular-weight film on the stratum corneum to instantly tighten skin and prevent moisture loss, while its small-molecule metabolites penetrate deeper to stimulate ATP synthesis and upregulate collagen production in fibroblasts.


Research

High confidence
Effective range 1–5%
Optimal

5%

Key findings

  1. 01 Clinical trials at a 5% concentration revealed a 39.4% reduction in deep wrinkle surface area and a 32.9% decrease in wrinkle density.
  2. 02 In-vivo testing demonstrated a 16.2% improvement in skin lifting and firming metrics.
  3. 03 In-vitro analysis confirms significant induction of cell migration and upregulation of the ABCA12 differentiation marker for barrier stabilization.

Transparency

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

Because it is a fermented extract, it is frequently included in ingredient lists at negligible concentrations (below 0.5%) for marketing purposes. To achieve the documented 30%+ reduction in wrinkle density, a concentration closer to 5% is required.


The Formula

Solubility
Water
Optimal pH 4.5 – 6.5
0 7 14

Stability

Thermolabile; must be incorporated during the cool-down phase of formulation at temperatures below 40°C to maintain biological activity.

Synergies

  • Hyaluronic Acid
  • Peptides
  • Niacinamide

Conflicts

  • High heat
  • Strong oxidizing agents

Safety

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

Generally non-toxic and non-sensitizing; however, individuals with specific fungal sensitivities or Malassezia-related conditions should patch test due to residual fungal enzymes.


Your Skin

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

Our Assessment

Valuable

A potent, science-backed ferment that delivers measurable improvements in wrinkle depth and skin tension when formulated at therapeutic levels.


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