In this module, the students will explore the science behind cosmetic products (mainly that of emulsion creams): what are the main ingredients of cosmetic products, what is their effect on skin or role in the product, and how cosmetical products are developed. Furthermore, the students themselves will develop a cosmetic product. Through this unit students develop their understanding of how the structure of matter is related to the properties of matter which is needed for understanding the technology of making cosmetic products. Moreover, students develop their understanding of possible advantages and disadvantages of industrial and home-made cosmetics.