Cosmetic products are composed of multiple ingredients of various physicochemical properties. within the process of formulation, all ingredients lose their intrinsic identity. In one sense, the essential philosophy of cosmetics formulation is as same as that of cooking gourmet foods. Formulation is the meticulous balance of all ingredients during a single physical entity. So as for all ingredients to require shape into a selected physical form, there plays invisible chemistry. Cosmetics formulation is quite just simple mixing of all ingredients. There must be chemistry behind producing all ingredients. Without chemistry it might be called a “mixture” instead of a formulation.