How effective is hydroponic cultivation of medicinal herbs, really?

For soil-cultivated medicinal herbs, the production area differs, so their medicinal properties differ, the content of their main active compounds also differs, and the growing environment is not easy to control.

What about hydroponically grown medicinal herbs?

With hydroponics, many growth factors can be controlled artificially, and even the content of the medicinal active compounds in the herbs can be controlled. Of course, this still requires extensive research.

What are the growth factors for medicinal herbs?

I will summarise and list them here as follows:

Temperature, humidity, water, pH value, oxygen, mineral fertiliser, gas fertiliser, light fertiliser, magnetic fertiliser (electromagnetic field), gravity, air pressure, etc. If these factors can be regulated freely, then superior medicinal herbs can certainly be produced. Of course, some factors still cannot be regulated or the cost is too high, but most of them can still be regulated.