This ancient plant is a family by itself (Equisetaceae). A diuretic , astringent and remineralizer, Cola de Caballo is used to tone the urinary tract and prostate gland, helps dissolve kidney stones and heal internal and external wounds, including any passive bleeding. Cola de Caballo also helps strengthen connective tissue and is used to treat osteoporosis. Ethnobotanical: A flowerless, bushy ground cover distinguished by branched, jointed, hollow and striated stems with scale-like leaves. Contains high amounts of silicon in a bioavailable form .