Back to Ingredient Dictionary

SODIUM SULFANILATE

Description

Sodium sulfanilate, also known as sodium p-aminobenzenesulfonate, is a synthetic organic compound widely used in skincare and cosmetic formulations. This versatile ingredient functions primarily as a pH adjuster and buffering agent, helping to maintain the stability and effectiveness of various products.

Chemically, sodium sulfanilate is the sodium salt of sulfanilic acid, with the molecular formula C6H6NNaO3S. It appears as a white to off-white crystalline powder that is highly soluble in water. In skincare applications, it plays a crucial role in regulating the acidity or alkalinity of formulations, ensuring optimal performance of other active ingredients.

Sodium sulfanilate's ability to control pH is particularly valuable in cleansers, toners, and exfoliating products. It helps maintain the skin's natural pH balance, potentially reducing irritation and supporting the skin barrier function. Additionally, this compound exhibits mild antimicrobial properties, which can contribute to product preservation.

While generally well-tolerated, some individuals with sensitive skin may experience mild irritation. As with any skincare ingredient, patch testing is recommended before widespread use, especially for those with a history of skin sensitivities or allergies.