Horsetail

Used most often for congestive or infectious conditions of the kidneys, as it is a very strong diuretic, as well as an anti-infective and astringent to the urinary system. These astringent properties can also be applied to conditions of unwanted bleeding, such as excessive menstruation, hemorrhoids, or ulcers.

Horsetail contains large amounts of minerals, especially silica, and so is used in malnutrition-related disorders which manifest as poor hair, skin, or fingernail condition. It can be irritating to the urinary system, and should be taken in small, frequent doses for short-term therapy only.