What is the alchemy of ancient China?

Alchemy is a traditional technique for refining elixirs in ancient times and is a pioneer of modern chemistry.

Since the Zhou and Qin Dynasties, our country has pioneered and applied this pharmaceutical method of heating and sublimating drugs, and is the first country in the world.

Chinese alchemy was introduced to Arabia in the ninth and tenth centuries, and to Europe in the twelfth century.

There are two types of medicines made by alchemy: external use and internal use. Those for external use are still very valuable, while those for internal use are gradually being eliminated due to their high toxicity.

The so-called "magic elixir" to achieve "immortality".