
Stearalkonium Chloride
Description
Stearalkonium Chloride is a quaternary ammonium compound widely used in cosmetic and personal care products. This versatile ingredient functions primarily as a conditioning agent, emulsifier, and preservative. Its chemical structure consists of a long-chain alkyl group attached to a positively charged nitrogen atom, giving it both hydrophobic and hydrophilic properties.
In skincare formulations, Stearalkonium Chloride acts as an effective hair conditioner, reducing static and improving manageability. It also serves as a fabric softener in laundry products. Its cationic nature allows it to adhere to negatively charged surfaces, such as hair and skin, providing a smooth, soft feel.
As an emulsifier, it helps stabilize oil-in-water emulsions, contributing to product consistency and shelf life. Additionally, its antimicrobial properties make it useful as a preservative, inhibiting the growth of bacteria and fungi in cosmetic formulations.
While generally considered safe for use in cosmetics, some individuals may experience skin irritation or allergic reactions. As with any ingredient, patch testing is recommended for those with sensitive skin. Concentrations typically range from 0.1% to 5% in various personal care products.