Noni Powder is made by 100% noni. We just ferment noni and we do not add any an artificial additive. I am sure NTV Noni Powder provide more effective than other company products. This is Sterilized products. No problem, Excellent effect. We always make products by excellent noni. NTV has two medical person who can check thoroughly. They are NTV's investors, and they always help us. If you have more information, DO NOT HESITATE TO CONTACT ME. THANK YOU SO MUCH.