The efficacy of PGX has been the subject of over a dozen human clinical studies. A published Human Tolerance Study conducted on 54 subjects showed PGX to be a safe and effective product under the test conditions (approved by French Health Authorities), and a published Genotoxicity Study further proves the safety of PGX. The studies were conducted in Australia, Canada, and France, on hundreds of subject over numerous weeks. Attached are abstracts of four that have been recently published.