Science
Mechanism of Action
This ingredient functions as a cationic surfactant, disrupting microbial cellular integrity. Its mechanism involves interaction with bacterial Toll-like receptors, alteration of mitochondrial membrane potential, and inhibition of H+ ATP synthase, leading to membrane depolarization and caspase activation. This cascade effectively eliminates bacterial cells, contributing significantly to the microbiological stability of cosmetic products.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Exhibits antibacterial efficacy against both wild-type and benzalkonium chloride-resistant strains of Staphylococcus aureus, acting as an antiseptic agent.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
A 1% aqueous solution demonstrates a stable pH range of 6.0 to 8.0, indicating optimal stability within these parameters.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) deemed similar quaternary ammonium compounds safe in rinse-off products and up to 0.25% in leave-on applications. However, the EU's Scientific Committee on Consumer Safety (SCCS) permits Myrtrimonium Bromide as a preservative at a maximum concentration of 0.1%. Use at higher concentrations for non-preservative functions necessitates additional safety data. While generally considered safe within appropriate limits, individuals may experience skin irritation, redness, itching, or allergic reactions, making patch testing advisable. Formulators should also consider potential combination effects, as quaternary ammonium compounds are known irritants at elevated levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Myrtrimonium Bromide is a valuable ingredient, primarily for its effective broad-spectrum antimicrobial action and preservative qualities, which are essential for product stability and targeted skin applications, provided its use adheres to established concentration guidelines.
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