North American Herb and Spice, Bet-u-power, 2-Ounces

What the brand says

Is the power of raw, wild, remote-source white birch bark. Birch bark is a top source of potent sterols known as betulin and betulinic acid. These sterols are the subject of extensive research and are heart-healthy. Sterols have high electrical charge and are needed by cell membranes. Take wild Bet-u-Power daily for better health.