Sodium stearate is a vegetable-based soap material sourced from coconut and palm oils. It is often referred to as a sodium salt that comes from stearic acid, a fatty acid that occurs naturally.
Given its consistency, sodium stearate is a major constituent of most vegetable-based soaps. In a deodorant, like the ones we make, it has the unique ability to form a structure with other materials like vegetable propylene glycol, glycerin, and propanediol to form a solid stick shape.