Senior perfumes usually contain hundreds of flavors. Therefore, each bottle of perfume has its own fragrance. However, these flavors can be roughly divided into Top Note, Middle Note, and low Note (also known as front, Middle, and tail notes respectively) three levels.

Front tone:
It is the first information disclosed by perfume, that is, the first ten seconds to a few minutes of perfume, which directly leads to the unknown in the nose. The front tone is usually emitted by volatile essential oil, most of which are fragrance of flowers or citrus. She was like a sudden high pitch in the first music, which attracted attention immediately, but the foretaste was not the real smell of a bottle of perfume, because it could only last for a few minutes.

Medium tone:
After the former flavor disappears, it begins to give off fragrance. The Middle flavor is the most important part of perfume and the essence of a perfume. This part usually contains some special floral fragrance, cosustoot, and a trace of spicy and stimulating fragrance, its smell, whether fresh or rich, must be perfectly connected with the front tone. The allocation of medium flavor is the most important responsibility of perfumers. Apart from choosing appropriate essence combinations to highlight the characteristics of perfume, he also needs ideas to make the fragrance lasting properly. The fragrance of medium flavor generally lasts for hours or longer.

Rear adjustment:
That is what we often call "yu" incense. It is usually composed of trace amounts of animal essence and aromatic resin such as cedar and sandalwood. It not only gives off fragrance, but also has the function of integrating fragrance. When the aftertaste is just beginning to work, it is often not fragrant, so the midtaste that is coming to an end will be temporarily taken care of, but after a while, the delicate and charming fragrance of the aftertaste began to exude. The function of aftertaste is to give perfume a three-day constant depth around the beam, which lasts for the longest time and can last for several days.