The main function of essence in cosmetics is to cover up the smell of raw materials and give products a pleasant feeling in the sense. Because many cosmetic raw materials have some unique smells, if they are not covered by essence, consumers will find it difficult to accept them.
In addition, a good essence can give people more pleasant psychological enjoyment, so the essence of high-end brand products will smell more comfortable, while the smell of some low-end products will be worse than that of high-end products, whether it is the first smell (head fragrance) or the last fragrance after being applied to the skin.
Extended data:
Each bottle of perfume has a production batch number. Whether it is a genuine standard or a sample, there is a piece of transparent plastic paper at the bottom of the bottle, which introduces the name, specifications and origin; Fake perfume does not have this paper, nor is it engraved.
The bottom of the genuine perfume bottle and the bottom of the outer packaging box have unified numbers. If the bottom of the bottle is GC 1 18, then the bottom of the box must also be GC 1 18. The bottom of the fake perfume bottle and the bottom of the box are not numbered.
If you have used this perfume before, you must be familiar with its fragrance. When you use it, you can feel whether its timbre is the same. Imitation perfume usually tastes the same before, but then it tastes different.
Pay attention to the sealing of perfume bottles, and the bottle mouth and bottle cap should be tight and seamless. Authentic perfume has neat packaging, clear pattern and no crack on the bottle. The original brand perfume has a white label written in Chinese, which mainly includes the import batch number, brand supplier, net content and shelf life.
These components are all small organic molecules, their structures are easy to determine, and it is not difficult to obtain them through chemical synthesis, and the products of these chemical synthesis are no different from the "natural products" generated in nature. Natural products are complex in composition. Generally speaking, the perfume separated from natural products has high cost and many impurities. It is difficult to ensure the consistency of its ingredients in different batches of products.
This is very unfavorable for the modern food industry that needs standardized production. However, chemical synthesis involves simple components, and the purity and consistency of products are easier to ensure.
In this sense, the safety of synthetic spices is even more secure than that of natural extracts. However, when people evaluate a perfume, they often take natural perfume as the standard and "like" natural perfume as the goal.
Although there are not many other ingredients in natural spices, they still have some influence on the final fragrance, so it is difficult for synthetic spices to reach the level of natural spices. In food, most people may not be able to tell the difference, and the preference for natural spices may come from psychological factors.
Synthetic spices have many varieties, large output and low cost, which make up for the shortage of natural spices and increase the source of aromatic substances. However, synthetic perfume is a monomer perfume, and its fragrance is relatively simple, so it cannot be directly used in perfumed products.
In order to have the fragrance or fragrance type of natural animals and plants, it is necessary to go through the fragrance mixing process to make it reach or approach the fragrance or fragrance type of natural animals and plants, and use it in perfumed products. Flavoring is the process of blending several or even dozens of spices into mixed spices with certain aroma or fragrance type and certain use according to a certain proportion. This mixed spice is called essence.
Powder essence can be divided into adsorption type and microcapsule type. Evenly mixing the powdered perfume with an adsorption carrier such as lactose, so that the perfume is uniformly adsorbed on the carrier, and making the adsorbed powdered essence. Microencapsulated essence is generally prepared by dissolving perfume, emulsifier and excipient in water to form colloidal dispersion, and then spray drying. Perfume is generally embedded in microcapsules and is relatively stable.
Reference: Baidu Encyclopedia-Synthetic Flavors
Baidu encyclopedia-perfume