Insam, finding its way to other countries in the period of Koryo (918-1392) to win a greater popularity for its efficacy, began to be called Koryo insam or Kaesong Koryo insam.

Kaesong, which was the capital of Koryo, was also a hub of insam trade because it had climatic, soil and other natural and geographical conditions favorable for insam cultivation and processing.

Insam plots find themselves in different parts of the area.

The medicinal effect of insam is very high.

The Kaesong Insam Processing Factory, the Koryo Medicine Factory and other insam processing factories, based on advanced science and technology, manufacture many kinds of processed insam such as tonic, extract, pills, tea and injection as well as steamed-and-dried insam, dried insam, Kyongok tonic and women's tonic.

Insam liquor is also famous for its medicinal effect.

Insam is used in making quality cosmetics, too.

The demand for Kaesong Koryo Insam, one of the Korean special products, and its processed goods is steadily increasing in local and foreign markets.