Barberry Root Bark (Berberis vulgaris)
Cut and sifted Barberry Root Bark
Quantity: One-half ounce (14 grams), approx. 1/4 cup
Active compounds: resin, tannin, chelidonic acid, alkaloids including berberine, berbamine, berberrubine, bervulcine, columbamine, isotetrandrine, jatrorrhizine, magnoflorine, oxyacanthine, vulvracine
Barberry root bark contains beta-carotene, lutein, zinc, vitamin C and thiamine. May be ground and encapsulated.
Safety: Vitamin B6 supplements inhibit the effects of berberine. May interact with certain medications.
Storage: Store in a sealed container in a dark, dry and cool place.