Tongkat Ali extract 200:1 is a Southeast Asian native tree. The active ingredient within Tongkat Ali extract 200:1 is called Eurycoma Longifolia Jack. Some other common names are also found in different countries as in Indonesia: Pasak Bumi ; USA: Longjack; however the most heard name is Tongkat Ali, as it is called in Malaysia. The Tongkat Ali extract 200:1 (TA) extract is becoming worldwide known due to a great number of scientific research publications found in newspapers, magazines and dedicated websites - giving impartial analysis and results. All it takes is to type Eurycoma Longifolia Jack on PUBMED website (www.ncbi.nlm.nih.gov/pubmed/), which is the U.S National Library of Medicine and National Institutes of Health, to find out further information about Tongkat Ali. The Tongkat Ali extract 200:1 (TA) imported by Tongkat OnLine does not contain any chemical products but only water and root (botanical). To further explain its ratio, it is necessary 1,000 Kilos of dry roots to obtain 5 Kilos of pure extract - meaning - 200 Kilos of dry roots to make 1 Kilo of extract. There is where the 200:1 or 1:200 ratio comes from. You will find a few number of products using the root in powder or even mixed with other herbs; extracts of 50:1 and 100:1 in small dosages associated with other botanical products. We are pleased to make this website available for your information, knowledge and purchases. It is intended to help who do not have the time to perform detailed research. We would be glad to reply to any questions or concerns sent via email. Your testimony and / or suggestions are greatly appreciated and will certainly help us to improve our research and service.