Science
Mechanism of Action
This ingredient functions synergistically by drawing moisture into the skin as a humectant and sealing it in as an emollient, promoting sustained hydration and a soft skin texture. It also serves as an effective solvent, aiding in the dissolution of challenging ingredients such as salicylic acid, and strategically reduces tackiness in gel-based formulations, optimizing product aesthetics and user experience.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Glycereth-7 Trimethyl Ether demonstrates robust hydrolytic stability across a wide pH spectrum. This characteristic renders it highly advantageous for formulations incorporating pH-sensitive actives like salicylic acid, as well as those operating in high pH environments. Notably, it can dissolve between 4.5 to 5.0 grams of salicylic acid in 10 grams of the ingredient itself.
Synergies
- Enhances solubility of lipophilic actives like salicylic acid.
- Reduces tackiness and improves sensorial feel in gel formulations (e.g., those using carbomers).
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically assessed Glycereth-7 Trimethyl Ether. However, broader 'Glycerin Ethoxylates' (including Glycereth-7) were initially deemed to have insufficient data for safety determination, with further studies requested. General data suggests this ingredient is considered safe, non-toxic, and well-tolerated across most skin types, with a low likelihood of irritation, even with prolonged exposure. Minimal eye irritation is expected upon accidental exposure. No specific SCCS or FDA status was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Glycereth-7 Trimethyl Ether is a valuable, multi-functional ingredient offering superior hydration, elegant texture enhancement, and excellent solvent properties, all within a robust and widely compatible safety profile.
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