The correct dosage for a particular botanical supplement is based on clinical studies and is specific for each preparation.
The correct dosage for a particular botanical supplement is based on clinical studies and is specific for each preparation. For instance, St. John's wort may be standardized to 0.03% hypericin (a marker chemical constituent), or the whole herb may simply be extracted in alcohol (i.e. 1 part herb to 4 parts alcohol), or parts of the herb (or the entire plant) may be powdered or cut and placed in a capsule or tea bag. Each preparation has specific dosage recommendations; therefore, it is best to read the label for specific dosages or to follow the specific instructions of a qualified health practitioner.
♣ last edit date:1st,Nov.2010.