Tinctures are essentially liquid extracts of herbs and alcohol. They are so effective because they create a potent and easily absorbed concentrations of the herbs cured in alcohol. When dropped under the tongue, it enter the bloodstream very efficiently, faster than with ingestion or tea extraction.
Hawthorn contains many substances that may benefit the heart. These antioxidant flavonoids, including OPCs, may help dilate blood vessels, improve blood flow, and protect blood vessels from damage.
The berries, leaves, and flowers of the hawthorn plant have been used for medicinal purposes. Most modern preparations use the leaves and flowers, which are believed to contain more flavonoids than the berries. It can help with chest pain, irregular heartbeat, with both low and high blood pressure and hardening of the arteries.