Food supplement Grapefruit seed extract 100 mg Recommended as the bodys first line of defense. The action of grapefruit seed extract extends to approximately 800 strains of bacteria and viruses, approximately 100 strains of fungi and a very large number of unicellular parasites. The antimicrobial action of grapefruit seed extract develops at an average concentration of 1000 pmm (parts per million), which corresponds to approximately 8 drops per glass of water. Comparative tests with 30 potent antibiotics and 18 antifungals were conducted by international research groups. In every test, Grapefruit Seed Oil was found to have an equivalent or greater effect on the strains present. The product is non-toxic. It would be necessary to absorb a dose 4000 times higher than the normal one to obtain poisoning effects. Grapefruit seed extract helps the immune system, while classic antibiotics inhibit it. In the intestinal tract, while grapefruit seed extract inhibits harmful bacteria, it has no effect on essential bifidus bacteria and reduces lactobacteria very little. Furthermore, the flora as a whole is improved. Made in the USA