Sodium citrate is a sodium salt of citric acid, known for its multifunctional properties. As a food additive, it serves as an acidity regulator, emulsifier, and preservative. In pharmaceuticals, it acts as a buffering agent and stabilizer, while in personal care products, it enhances stability and texture.

Sodium citrate finds application in personal care and cosmetic products as a pH adjuster, enhancing stability and texture in creams, lotions, and gels.