From the Manufacturer:
uBtcher's Broom contains beneficial ruscogenins and flavonoids, two phytochemical substances that help support leg vein health. Butcher's Broom has been used for decades to promote vein health, and studies indicate that Butcher's Broom helps relieve the itching, tingling and cramping caused by occasional discomfort occurring in the lower extremities, especially during mid-life.