We offer a full range of extract powders, in both single herb and formula varieties. Available in 100G bottles, our extract powders are 5:1 concentration. We primarily offer our powder/ granule Chinese herbs from KPC herbs also known as Kaiser Pharmaceuticals, a Taiwanese company that traces its root back to 1892. KPC herbs are manufactured and tested in the world's most advanced herbal manufacturing facility with an area as large as four football fields. KPC tests each batch of every product to ensure safety, potency, and consistency.