Goldenseal - Active Components

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The components of goldenseal preparations with proven activity are several alkaloid substances: berberine, hydrastine, and canadine. Of these, the best characterized is berberine, which has shown antimicrobial activity. Berberine is a bright yellow, bitter substance found in a variety of plants, including barberry root bark (Berberis vulgaris) and Oregon grape root (Mahonia aquifolium).