Potassium Lactate is the potassium salt of lactic acid and is frequently used as an excipient in cosmetic formulations. In skin care, it also serves as a humectant, as it binds water and thus helps protect the skin from drying out. In addition, potassium lactate has skin-nourishing properties and helps the skin feel comfortable. Thanks to its buffering properties, it also helps regulate and stabilize the pH of cosmetic products, which is important for the formulation’s tolerability and effectiveness. (1)