I think we may have a misunderstanding between herbs and " Chinese herbal medicine" practice or the Eastern style of herbal medicine practice in the Far East including Japan' Kampo practice ,South Korea,Taiwan and down to Singapore. "Chinese Herbal Medicine " is a generic name refers to the practice itself. The herbal medicines usually contain barks of plants,stones of different metals ,skins and body parts of animals,leaf and seeds,fruits depending on different regions ,climate and time of harvest.
I can only say one thing, lisence or law will not ensure you will get the real thing from some Far East suppliers, there are a lot of look a likes out there.But if you can grow them,then it is a different story.
Please know that my personal opinion is not intended nor implied to be a substitute for professional medical advice. If provided, information are for educational purposes.Consult doctor is a MUST for changing of treatment plans.