SINCE time immemorial, herbs have been used by man for the relief of various ailments and the maintenance of health and general well-being. A vast amount of useful information on the therapeutic uses of herbs has been accumulated and preserved by various cultures around the world.
Herbs are natural products. Nature does not supply its products with a consistent, standardised composition. We know from daily experience that there are various types and quality of tea and coffee. Similarly, the constituents of medicinal herbs can vary greatly.