(Planetary Formulas) Your liver is your body’s natural filtration system. It removes toxins, wastes, and impurities from your blood. Planetary Formulas Bupleurum Liver Cleanse is based on the ancient Chinese formula that has been used for centuries. It contains the Chinese herb bupleurum, plus 8 other liver cleansers and protectors. Help refresh and cleanse your liver today. Suggested use is 2 tablets twice daily between meals, or as recommended by your health care professional.