Safflowers is excellent for the digestive system, especially the liver and gall bladder. Gotu kola is famous for the nervous system, particularly the brain. But it also is used for the urinary system and is an excellent herbal source of calcium, magnesium and silicon. Hawthorn berries are famous in Europe for the circulatory system, especially the heart. Papaya fruit contains proteolytic enzymes that enhance protein digestion.
Chamomile flowers are famous for the nervous as well as the digestive system.
Fennel seeds contains aromatic compounds that are used for the digestive system as well as the respiratory and urinary systems. Dandelion root is a wonderful herb for the digestive system, especially the liver and gall bladder. Cascara sagrada bark is perhaps the most famous herb for the intestinal system. Black Walnut Hulls contain astringent compounds and also natural iodine, which the body needs in small amounts. It is used for the circulatory, glandular and digestive systems.