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Progressive Laboratories QB-Zyme Pro is a professional "signature" product clinically formulated by Progressive Laboratories Medical Director, Dr. Mitchell A. Fleisher, M.D., D.Ht., D.A.B.F.M., Dc.A.B.C.T.
This quercetin/bromelain complex is designed to nutritionally support the body's natural defenses.
Amount Per Serving ... %DV
Vitamin C (as magnesium ascorbate) ... 249 mg ... 415%