Frequently Asked Questions General Do you employ an independent laboratory to ensure potency, purity, activity and consistency? Yes. It is a part of good manufacturing process (GMP) to perform quality checks and also to have in-house tests backed up by independent laboratory analysis. Each batch is tested several times on a frequency which depends on the batch size. Home | Product Line | Endorsements | FAQs | Research | Order Products VITAL PRODUX™ 44 Mine Rd. Suite 2, PMB 209 Stafford, Virginia  22554  USA 540-286-2400 – FAX: 540-752-4765 E-mail: info@VitalProdux.com Copyright © 1996-2003, VTI, Inc. All Rights Reserved. Text, graphics, and HTML code are protected by US and International Copyright Laws, and may not be copied, reprinted, published, translated, hosted, or otherwise distributed by any means without explicit permission. Vital Produx™ is a trademark of VTI, Inc. Other trademarks are the property of their respective owners.