Hello everyone,
A couple other resveratrol users and I have come across a company advertising 98% and 99% trans-resveratrol extract powder:
Changsha Organic Herb, Incorporated, based in Hunan, China. Website:
http://www.organic-herb.com.
As it stands, the current (as of 4/30/07) quoted cost of 98% and 99% trans-resveratrol is $680 and $800 U.S. Dollars respectively, per kilogram- extremely inexpensive (68 and 80 cents per gram). Orders for quantities below one kilogram are also allowed, but the price is slightly higher. This eliminates the need for a bulk purchase.
The purpose of this post is to enlist other users who would be interested in purchasing this product individually, but would prefer to have it independently tested and assayed beforehand. Due to the considerable cost of such testing, we propose splitting the analysis expenses. At the moment, three of us are interested in having this product tested and are planning to test the advertised 99% trans-resveratrol.
The cost of the complete testing, which includes HPLC analysis for trans-resveratrol, cis-resveratrol, and emodin along with testing for the heavy metals mercury, lead, arsenic, and cadmium, and a plate count, is $600 U.S. dollars. Two of us have recently ordered from this company and have found that the product seems to be of very high quality and the company seems to be professional.
If you are interested in possibly purchasing this product and prior to this would like to have it independently tested and analyzed by American Analytical Chemistry Laboratories Corp. (
http://www.aaclabs.com), please let me know. The $600 dollar cost would be split among all of us (however many sign on to share the analysis expenses), potentially making testing much more affordable.
Thanks.