Science
Mechanism of Action
This ingredient operates by bridging immiscible oil and water components within formulations, ensuring a uniform and stable product texture. On the skin, it delivers a subtle hydrating effect, enhancing comfort without residue. Furthermore, it provides antistatic and conditioning benefits, particularly for hair.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Information regarding the dusting properties, thresholds, or red flag percentages for Steartrimonium Methosulfate is not available in the provided research data.
The Formula
Formulation
Stability
This ingredient maintains stability across a pH range of 5.5 to 7.5, observed in a 10% aqueous solution at 25°C. It effectively stabilizes complex product formulations.
Conflicts
- Anionic ingredients
- Soaps
- Nitrates
- Heavy metals
- Oxidants
- Rubber
- Proteins
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has deemed Steartrimonium Methosulfate safe for cosmetic use, provided specific concentration or usage limitations are adhered to. It presents a low potential for allergic reactions and immunotoxicity. However, comprehensive data regarding its potential for skin, eye, or lung irritation remains unassessed by CIR. While similar compounds like steartrimonium chloride have established maximum concentrations (e.g., 0.5% in leave-on facial creams by SCCS), a specific maximum concentration for Steartrimonium Methosulfate from SCCS was not available.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Steartrimonium Methosulfate is a valuable ingredient for its multifunctional properties as an emulsifier, conditioner, and subtle moisturizer, deemed safe with restrictions by CIR for broad skin compatibility.
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References
Sources