Description Discovered by the Aborigines of northern Australia, goldenseal grows freely in the eastern United States where it has been used by Native Americans for centuries. Nature's Plus Herbal Actives Goldenseal root and rhizome extract is uniformly standardized to a minimum of 10% (25 mg) alkaloids (hydrastine and berberine) to guarantee that each and every capsule provides consistent potency and activity. Each capsule, providing the greatest concentration of active botanical principles, maximizes the synergistic benefits of the whole root and rhizome, which naturally contain berberine, canadine and berberastine.
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