How to add perfume to the scalding and dyeing products commonly used in cosmetics is a long-standing problem, which has troubled generations of cosmetic formulators. Because these two chemicals have special odor that is difficult to cover up, and are alkaline, oxidizing or reducing, most of the spices have chemical changes with some of their ingredients. Practice has proved that synthetic linalool, rosewood oil, galangal oil, white leaf orchid oil, and currently available linalool oil and linalool oil in the market can not cover up the odor of these two chemicals. Only pure linalool oil dominates the flower, which can not only cover up the chemical smell of perm and hair dye, but also spread a very natural and comfortable fragrance of flowers and plants. The aroma intensity of pure linalool was underestimated, but in fact, its aroma intensity is even higher than that of dihydrolaurenol - this is the main reason why natural linalool oil can mask the odor of scalding and dyeing products. Even the by-product of pure Cinnamomum oil, "pure Cinnamomum dew" (distilled water from the lower layer after oil-water separation), although the flavor content is very low, the flavor is very strong, and can be directly used as water-soluble flavor. From this case, we can find that there is a great difference between natural linalool and synthetic linalool.

    LinaloolIt is a colorless liquid with the fragrance of bell orchid, but it has different smell according to different sources. Linalool is the most frequently used perfume in the formula of perfume essence, home chemical product essence and soap essence. It is also used to prepare food essence. At present, more than 10000 tons of linalool are used to prepare various flavors all over the world. More than 90% of linalool used in the world today comes from "synthetic linalool". Since the first synthetic perfume in the world was manufactured in the laboratory and successfully used to prepare perfume essence, chemists have dreamed that one day they will "drive away" all natural spices from the shelf of the perfumer, thinking that all spices can be mass produced in the chemical plant without being restricted by geography, climate, species, artificial conditions and other factors. Over the past hundred years, natural flavor has not died out, but has become stronger and stronger in the competition with synthetic flavor. The annual total demand has been growing steadily. The "strong launch" of natural flavor is mainly due to their "aroma charm", and people's understanding of "aroma charm" is still in the "primitive stage", not even the primary stage. The development of synthetic linalool and natural linalool is a good example.

    60 years ago, perfumers could only use natural linalool to prepare various fragrances, because there was no synthetic linalool available for perfumers at that time. However, the resources of natural linalool are limited. Although there are countless natural aromatics containing linalool, there are few natural aromatics that can be used for extraction. Only a few natural aromatics that can be directly used as linalool extract are linalool oil, linalool leaf oil, brandy leaf oil, rosewood oil, Garwood oil, etc. The natural linalool has a pure, round, sweet and elegant smell, which is difficult to compare with synthetic linalool. Because natural linalool has the characteristics of optical rotation, especially the "biological potency" of levorotatory is better than that of synthetic linalool in medicine - some drugs can only use levorolinalool as the starting material.

    Nowadays, the common camphor trees are not pure camphor trees. Pure camphor trees are now very rare. Pure camphor leaf oil has a very fresh and strong floral fragrance, like the newly opened bell orchid, more like the fragrance of the broken brandy leaves, and also like the freshly picked tea. It has a little emotional sweetness, which makes people think of the fruit fragrance of citrus and sweet orange. It is pleasant to smell, and they can't bear to leave; It has a refreshing cool air, like mint, more like spearmint, without the slightest smell of camphor, Eucalyptus oleoresin and other herbs and various terpenes. At present, the aroma of Cinnamomum camphora oil, Cinnamomum camphora leaf oil and natural linalool on the market is also very different, and the difference is equivalent to completely different spices!