Cat's Claw Bark, Unicaria tomentosa
Cats Claw is a vine commonly known as Una de Gato and is used traditionally in Peruvian medicine for the treatment of a wide range of health problems.
Usually used as a tincture. The tannins in the herb are released only if it is taken in an acidic medium; add a little lemon juice to a quarter-cup of water to which you add the tincture or prepare as a tea. May be taken as a capsule.