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sodium chloride

Description

Sodium chloride, commonly known as salt, is a versatile ingredient in skincare formulations. This inorganic compound consists of sodium and chloride ions, forming a crystalline structure. In cosmetic applications, sodium chloride serves multiple purposes beyond its well-known role as a food preservative.

As a thickening agent, sodium chloride can modify the viscosity of surfactant-based products such as shampoos and body washes. It acts by altering the micelle structures formed by surfactants, resulting in a more viscous consistency. In skincare, sodium chloride functions as an osmotic agent, helping to balance moisture levels in the skin and surrounding environment.

Sodium chloride also exhibits mild antiseptic properties, which can be beneficial in certain formulations. It can contribute to the preservation of products by creating an inhospitable environment for microbial growth. In some cases, it's used as an exfoliant in body scrubs, providing gentle mechanical exfoliation.

While generally considered safe for topical use, high concentrations of sodium chloride can potentially cause dryness or irritation in sensitive individuals. Formulators must carefully balance its concentration to achieve desired effects without compromising skin comfort or barrier function.