... GFS Grapefruit Seed Extract Product Name: Grapefruit Seed Extract Grapefruit Seed Extract Plant Origin: Citrus paradisi Grapefruit Seed Extract Specification: ... .A biologically active natural ingredient found in the Grapefruit Seed Extract kills strep, staph, salmonella, e.coli, candida ... parasites, fungi and traveler's diarrhea, and Grapefruit Seed Extract is used as an antibiotic, anti-fungal, anti ...