Science
Mechanism of Action
This extract primarily functions as a potent humectant, effectively attracting and binding water molecules to the skin's outer layers, thereby significantly boosting hydration and promoting a soft, supple texture. It creates a breathable, protective film on the skin's surface, which acts as a shield against environmental stressors and actively minimizes transepidermal water loss. The rich amino acid profile contributes to skin plumpness and elasticity, with research suggesting its potential to support the synthesis of collagen and elastin fibers, and increase cell turnover. Furthermore, it may offer soothing and anti-inflammatory properties, potentially reducing redness and irritation, and has been observed to inhibit tyrosinase activity, contributing to a brighter, more even skin tone.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 Recommended topical usage rates for Silk Hydrolyzed Liquid typically range from 0.5% to 2%.
- 02 Hydrolyzed Silk Peptide is commonly recommended at a usage rate of 1% to 5% by weight.
- 03 A maximum concentration of 1.4% for silk powder, a form of hydrolyzed silk, has been noted in leave-on products such as face powders.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Hydrolyzed Silk and its derivatives maintain optimal stability within a pH range of 4.0 to 6.0; exposure to high pH solutions can lead to denaturation of natural silk fibers. The ingredient exhibits robust thermal stability, allowing for its integration into the cool-down phase of water-based formulations or direct addition to warm emulsions. Liquid forms necessitate refrigerated storage (4-8°C / 39-46°F) and protection from direct sunlight for long-term efficacy.
Safety
Safety Profile
The CIR Expert Panel has determined Hydrolyzed Silk and seven other related silk protein ingredients to be safe within current cosmetic applications and concentrations. It is widely recognized as a safe, non-irritating, and hypoallergenic ingredient, making it suitable for a broad spectrum of users.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrolyzed Silk Gland Extract is a valuable and highly compatible ingredient, offering significant hydrating, protective, and reparative benefits for all skin types, with a proven safety profile.
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