"Horsetail." is an herb. It is not hair pulled from a horses tail!! :o)
Many people are skeptical when they first hear this because of the name of the herb. Horsetail, however is named for the way it looks. In the wild or grown in an herb garden it looks similar to a horses tail.
The herb is a natural form of selenium and silica. These natural compounds help hold your body together and assists in building collagen which in turn will strengthen not only your nails but your skin, teeth and hair as well.