Science
Mechanism of Action
This compound exerts its effects through a multi-faceted approach. It creates a temporary film on the skin's surface, providing an immediate tightening sensation. Furthermore, it is reported to stimulate the endogenous synthesis of collagen and elastin, critical proteins for maintaining skin structure and elasticity. Its exfoliating action aids in revealing a clearer, brighter complexion. Sodium Silicate also acts as an absorption enhancer, facilitating the uptake of other beneficial actives. With inherent antiseptic and antibacterial qualities, it contributes to reducing blemishes. It functions as a pH modifier and stabilizer, assisting in balancing skin pH, minimizing pore appearance, and regulating sebum production while supporting the skin's natural protective flora.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Utilized in wrinkle-reducing formulations for temporary skin tightening.
- 02 Reported to increase collagen and elastin production in the elderly, according to cosmetic manufacturers' studies.
- 03 Demonstrates exfoliating properties leading to clearer and lighter skin tone.
- 04 Enhances the absorption of other active ingredients, vitamins, and nutrients in skincare products.
- 05 Effective in reducing pimples and acne due to its antiseptic and antibacterial attributes.
- 06 Cited in patent information for the treatment of dry skin conditions including psoriasis, dermatitis, and eczema.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sodium silicates maintain stability in neutral and alkaline solutions. However, in acidic environments (below pH 9), silicate ions react to form silicic acids, which then decompose into an insoluble hydrated silicon dioxide gel. Stable solutions of monomeric and polymeric silicate ions exist above a pH of 11-12.
Synergies
- Enhances the absorption of other active ingredients, vitamins, and nutrients.
Conflicts
- Acids (causes precipitation and decomposition)
- Alkaline earth ions
- Heavy metal ions
- Brine (causes coagulation)
Safety
Safety Profile
The Expert Panel for Cosmetic Ingredient Safety (CIR) concluded that sodium silicate and related silicate ingredients are safe in cosmetics when formulated to be non-irritating, specifically at concentrations below 40% with a molar ratio (SiO2/Na2O) greater than 3.2. Dermal and ocular irritation can vary from negligible to severe depending on the specific molar ratio and concentration. Formulations with molar ratios up to 1.6 and concentrations exceeding 50% may be corrosive, and those with molar ratios >1.6 can be irritating. Notably, a skin freshener containing 4% active Sodium Silicate (10% of a 40% aqueous solution) was found to be non-irritating. Sodium Metasilicate, a form of sodium silicate, is generally recognized as safe (GRAS) for certain food applications by the FDA. Untreated soluble silicate solutions are typically alkaline (pH > 9) and may cause irritation or corrosivity; neutralization prior to discharge is recommended.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering notable benefits like temporary tightening and collagen support, Sodium Silicate Extract requires precise formulation within specific concentration and molar ratio parameters to mitigate its moderate irritancy potential and align with safety guidelines.
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