Potassium Sorbate is the salt of Sorbic Acid and it's used as a preservative in things like food and even skin care products. In a nutshell, it fights bacteria and microorganisms to help keep products from going bad, and that's exactly why we use it in Eco-Max plant-based cleaning products.
Potassium Sorbate is found in nature, but for commercial purposes it's synthetically made by reacting compounds. It is a safer alternative to the harsh preservatives found in conventional cleaning products.