A round up of Herbal formulations from our top Suppliers. Plants have been used as Herbal Medicines since the beginning of time. Herbal Medicines may be used to treat specific illness, such as Echinacea for the common cold, or they may be used to support and detoxify systems in the body. Many herbs such as St Johns Wort, Blue Cohosh, St Mary's Thistle, Echinacea, Chaste Tree and Ginkgo have undergone thorough medical testing and been proved both safe and effective medicines.