formulation - a substance prepared according to a formula; the physician prescribed a commercial preparation of the medicine. preparation. cleaner, cleanser, cleansing agent - a preparation used in cleaning something.
A food additive is any chemical substance that is added to food during preparation or storage and either becomes a part of the food or affects its characteristics for the purpose of achieving a particular technical effect.
any of a large variety of substances added to foods to prevent spoilage, improve appearance, enhance flavor or texture, or increase nutritional value. Most food additives must be approved by the U.S. Food and Drug Administration to determine whether they can cause cancer, birth defects, or other health problems.