Barberry is derived from the Oregon Grape root and may offer immune support properties.* Every day, a lot is thrown at you. Harness the power of nature with Barberry.  Nutramedix's unique formula was strategically designed to deliver Oregon Grape Root Extract, which may offer immune support properties. Sourced from nature itself, Barberry allows you to tap into nature’s power as you incorporate this highly bioavailable liquid into your daily routine.*