Throughout the descriptions of herbs you will find comments like "may prevent", "may help", "may ease", "may be effective", and so on. The reason these phrases are used is because limitations are placed on them by the FDA.

In most cases, if you go to a store and peruse the herbal items for sale there, you will find little, if any information on the label regarding what the herb does for you. Again, this is because of FDA restrictions. It is best to purchase books that describe the use and benefits of herbs to go along with the supplements that you buy. Suggested doses are usually found on the labels but remember even these vary greatly between manufacturers, strengths vary as well. Other factors need to be taken into consideration, too, like individual circumstance, allergies and effects on your system. 
 

Use some common sense guidelines in the use of herbs. Please pay particular attention to them and remember that any serious condition needs to be dealt with by a licensed medical doctor or herbalist. Do not attempt to treat yourself for serious medical problems without guidance.

 

 from  Herbalistic magazine