A formulation chemist helps in the product testing and development of pharmaceuticals or household products, like cleaners, cosmetics, and soaps. Your duties include mixing different agents or compounds and performing tests, such as UV tests, to determine product safety and potential for use. Some formulation chemists work in other industries such as the oil and gas industry where they inspect octane levels for car fuel. You might also find work as a cosmetic chemist where you test makeup and perfumes. Others work in the food industry, testing and creating ingredients and flavor additives.