Are concentrated herbs as effective as raw herbs?
Currently used herb powders are 5:1 concentrated extracts from individually cooked raw herbs. The manufacturing process has very strict quality control for the properties, water content, solubility, concentration, harmful bacteria, fungi, and heavy metal content. The special low-temperature boiling process used provides a 95% return of the active components. Therefore all natural properties of raw herbs are retained. A clinical study in 14 hospitals in China found the concentrated herbs have greater effectiveness than raw herbs. Other reports consider they are slightly less effective due to the loss of interactions between active principles of raw herbs occurred during the decocting process.