From the 7th century to12nd century, Arab countries have made great achievements in cosmetics production, represented by the invention of processing plant flowers by distillation, which greatly improved the output and quality of essential oils. At the same time, cosmetics in China have made great progress. There are records of thrush and lip finger in the ancient book Hanshu. In Qi Shu Yao Min, the powder with clove fragrance was introduced. Curry by China and Han Yanzhi in Song Dynasty is the earliest monograph on fragrance in the world. It is a cosmetic based on oil-water emulsification technology. 18, 19 After industrial revolution in europe in the century, chemistry, physics, biology and medicine got unprecedented development, and many new raw materials, equipment and technologies were applied to cosmetics production. Due to the development of surface chemistry, colloid chemistry, crystallization chemistry, rheology and emulsification theory, dielectric surfactant was introduced and HLB value method was adopted to solve the key problem of selecting emulsifier correctly.
Under the guidance of these scientific theories and people's practice in the future, cosmetics production has undergone tremendous changes, from the original primary small family production in the past to a new professional science and technology. It is on this basis that China's cosmetics industry has become the fastest growing and most popular industry in China's light industry. Even the famous FDA in the United States is considering changing its name to FDCA. It is a cosmetic added with various animal and plant extracts. The cosmetics are supplemented with essences such as Ainera and Hormoues extracted from the skins and viscera of natural plants or animals such as Gleditsia sinensis, fruit acid and papaya. Supercritical CO2 extraction is an advanced extraction method, which improves the yield and extraction purity of effective substances, thus making them salty. Lingpin has been popular abroad for forty or fifty years, which makes it possible for people to pursue whitening, acne, freckle and wrinkle removal. Until now, some of these cosmetics are still very popular.
Functionalization; Functional cosmetics, which are also called therapeutic cosmetics and sometimes quasi-cosmetics, mean that they are medical cosmetics and medicines. It is a bionic cosmetic, that is, using biotechnology, biological essence with high affinity is made into substances similar to the human body's own structure, and it is compounded into cosmetics to supplement, repair and regulate cytokines, so as to achieve the purpose of anti-aging and repairing damaged skin. This kind of cosmetics represents 2 1 century; The development direction of ling products. These cosmetics are represented by bioengineering agents such as ceramide and genetic engineering agents such as deoxyribonucleic acid (DNA) and epidermal growth factor (EGF). In order to make breast enhancement, slimming and skin rejuvenation possible to a certain extent.