A normaliser. A remedy that serves to harmonise the function of an organ (liver, endocrine gland) in such a way as to “improve apparently contradictory symptoms” (Simon Mills). A plant that acts in two different ways, having two different characters. In chemistry, an amphoteric affects both red and blue litmus, acting both as an acid and an alkali. Some plants have opposite effects, notably Lily of the Valley, according to the condition of the heart.
Thus, a plant may normalise glandular secretions, build up cell protein and enable the body to recover from exertion. This important group includes Gotu Kola, Sarsaparilla and Ginseng.