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Since 2007, Green Tree Laboratories has followed Good Manufacturing Practices for dietary supplements (GMPs). Our quality control process includes a team of highly trained scientists who conduct bacterial contamination tests to ensure our products are free of contaminants. Doctors recommend Green Tree Laboratories because the company’s dedication to practicing science-based medicine informs its premium-quality products, which have been proven through clinical experience and have been recommended by doctors for years.

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Green Tree Laboratory
P.O. Box 1410 Lake Grove, Oregon 97035

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