We follow GMP protocol at Oasis Kratom. All of our packaging is done in a kitchen licensed by the Department of Health in the state of Nevada. We test our product in accordance with GMP regulation of square root of the lot size (n) + 1. Every lot we touch is tested 8+ times for salmonella, E.coli, staph, yeast, mold, and to confirm its 100% all natural Mitragyna Speciosa. Please see below some recent lab testing results.