1. General

1.1 Formulation definition

The concept of formulation is very broad, since it concerns all industries that produce intermediates or finished products by mixing several raw materials. More precisely, formulation can be defined as all the knowledge and operations involved in mixing, combining or shaping ingredients of natural or synthetic origin, which are often incompatible with each other, in order to obtain a commercial product characterized by its function of use (washing laundry, caring for the sick, applying make-up to the skin, etc.) and its ability to satisfy pre-established specifications. Among the constituents of a formula, a distinction must be made between active ingredients, which fulfill the main function sought, and formulation aids, which play accessory roles....