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METHYLBENZETHONIUM CHLORIDE

Description

Methylbenzethonium chloride is a quaternary ammonium compound widely used in skincare and personal care products for its antimicrobial and preservative properties. This synthetic ingredient belongs to the family of benzalkonium chlorides and is known for its broad-spectrum effectiveness against bacteria, fungi, and some viruses.

In skincare formulations, methylbenzethonium chloride typically serves as a preservative, helping to extend the shelf life of products by preventing microbial growth. It is particularly effective in water-based formulations and can be found in various products such as cleansers, toners, and moisturizers. The compound also exhibits surfactant properties, which can enhance the cleansing capabilities of skincare products.

While effective at low concentrations, typically ranging from 0.1% to 0.5%, methylbenzethonium chloride may cause skin irritation in some individuals, particularly those with sensitive skin. It is generally considered safe for use in leave-on and rinse-off products when formulated at appropriate concentrations. However, prolonged exposure or use in high concentrations may lead to skin sensitization. As with any active ingredient, patch testing is recommended for those with known sensitivities or allergies to quaternary ammonium compounds.