Hawthorne(Crataegus oxycantha) is a small thorny tree or shrub that produces brilliant red clusters of berries. Hawthorn Berries Tea is used as a heart tonic and its benefits derive from the presence of Flavonoids, Cardiotonic Amines and Polyphenols as well as Vitamins B and C. Hawthorn Berries Tea can help to relax and dilate arteries which in turn allows a greater flow of blood and oxygen through the body. With the blood vessels in a relaxed state this also sees a positive effect on blood pressure.