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ASPERGILLUS/WALNUT SEED/PEACH SEED/APRICOT SEED/PRUNUS MUME SEED FERMENT FILTRATE.

Valuable CAS - / HUMECTANT

A nutrient-dense bio-filtrate produced through the Aspergillus-mediated fermentation of walnut, peach, apricot, and Japanese plum seeds. This process transforms complex botanical lipids and proteins into low-molecular-weight actives that significantly enhance skin moisture and antioxidant defenses.

humectant skin conditioning antioxidant barrier repair

Science

The fermentation process utilizes enzymatic activity to deconstruct high-molecular-weight seed components into bioavailable amino acids, peptides, and organic acids. This not only unlocks potent polyphenols like amygdalin but also generates natural humectants that integrate with the skin's Natural Moisturizing Factor (NMF) to reinforce the lipid barrier and reduce moisture loss.


Research

Medium confidence
Effective range 1–5%
Optimal

2.5%

Key findings

  1. 01 Technical evaluations indicate that a 1.0% concentration is sufficient to measurably reduce transepidermal water loss (TEWL) and improve barrier resilience.
  2. 02 Concentrations between 2.0% and 5.0% show significant increases in DPPH radical scavenging activity and epidermal hydration compared to non-fermented botanical controls.

Transparency

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

Because it is a multi-seed complex, it is frequently used at 'label claim' levels (under 0.5%) in mass-market products. To achieve functional barrier repair and antioxidant benefits, a minimum of 1.0% is required.


The Formula

Solubility
Water
Optimal pH 4 – 6.5
0 7 14

Stability

Thermolabile; must be incorporated during the cool-down phase at temperatures below 40°C to maintain the integrity of the fermentation byproducts.

Synergies

  • Hyaluronic Acid
  • Niacinamide
  • Panthenol
  • Glycerin

Conflicts

  • Strong oxidizing agents
  • Formulations with pH above 8.0
  • Specific cationic surfactants

Safety

CIR Status
Not reviewed
Max tested
100%
Pregnancy
Safe
Sensitization risk Low

While the specific complex is unreviewed, its components (walnut, stone fruit seeds) and the Aspergillus fermentation process (widely used in food-grade Koji) are generally recognized as safe.


Your Skin

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

Our Assessment

Valuable

A high-performance fermented complex that provides superior bioavailability for hydration and barrier support compared to standard botanical extracts.


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