I subscribe to Consumer Lab, a source for independent testing results of many companies products. They publish a great newsetter that you should subscribe to.
This month they revealed some interesting results:
Jarrow Gingko Biloba 60mg lacked the active compounds and received a Not Approved.
Life Enhancement' s Huperzine-A contained NO Huperzine-A and (obviously) received a Not Approved.
They reconfirmed our view that the latest research on soy derived phosphatidylserine (PS) shows no efficacy in humans. Previous postive results came from bovine derived PS.
In the coming weeks we will be introducing several new products under the Relentless Improvement brand name, and again, before bottling the raw materials will be tested by an independant 3rd party lab for purity.
It is hard to be a careful consumer. We will do our best to help you navigate. Thanks for your trust!