http://gingertalk.com/greencoffeebean – you can buy the brand I purchased here.
The brand I bought was from whole foods is by Genesis Today Pure Green Coffee Bean. I took 2 pills per day and did not change my diet or exercise routine and lost 4 1/2lbs in 2 1/2 weeks.
UPDATE 11/9/13 I took the green coffee bean extract pills for about 45 days and lost 10 pounds. I stopped taking them about a month ago and have not gained any weight back.