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.
1,2 Food additives in use today can be divided roughly into three main types: cosmetics, preservatives and processing aids, totalling presently about 3,794 different additives, of which over 3,640 are used purely as cosmetics, 63 as preservatives and 91 as processing aids.