NOW Foods Hawthorn Berry contains various compounds such as procyanidins, flavonoids and flavonols which exhibit antioxidant properties. Now Foods Hawthorne Berry is one of the oldest known herbs used in traditional European herbal medicine. Now Foods Hawthorne Berry is first mentioned in the journal of Dioscorides, a Greek physician of the first century. The Hawthorne tree was regarded as sacred at one time due to the belief that it furnished the Crown of Thorns in early Christian history. Today, the berry, leaf and flower of the plant are all used in various herbal formulations.