Science
Mechanism of Action
The Bacillus fermentation process enzymatically converts complex silkworm lipids into low-molecular-weight fatty acids and bioactive peptides. These metabolites mimic the skin's natural lamellar bilayer, integrating into the stratum corneum to reinforce structural integrity, while simultaneously acting as natural moisturizing factors (NMF) to lock in hydration.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 In-vitro and proprietary testing by the Coreana Cosmetics Research Institute demonstrates that this fermented complex (Cera-Silk) significantly improves moisture retention and barrier repair compared to non-fermented counterparts.
- 02 Studies indicate a high concentration of alpha-linolenic acid (>30%), which is scientifically documented to suppress pro-inflammatory markers and stimulate endogenous ceramide synthesis.
Transparency
Dusting Analysis
Because it is an exotic-sounding fermented extract, brands often include it at 'claim' levels (below 0.5%) for marketing purposes. To achieve the physiological barrier-strengthening and anti-inflammatory benefits cited in research, a concentration of 1% or higher is necessary.
The Formula
Formulation
Stability
Highly stable in emulsions and aqueous delivery systems; however, the filtrate contains heat-sensitive peptides and should be incorporated during the cooling phase of production.
Synergies
- Ceramides
- Niacinamide
- Hyaluronic Acid
- Panthenol
Conflicts
- Strong oxidizing agents
- Formulations with extreme pH values below 3.0 or above 9.0
Safety
Safety Profile
Listed in the EU CosIng database; generally considered safe due to its biocompatible lipid profile and the established safety of Bacillus ferments.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional multi-tasking ingredient for compromised barriers that combines the nourishing properties of essential fatty acids with the enhanced bioavailability of fermentation.
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References
Sources