try this link- interesting info
explains why I have been craving plack pepper too
http://www.healthdiaries.com/eatthis/turmeric-and-black-pepper-for-cancer.html
Vitacost.com (my fav website for supplements and organic toiletries) has a very good product, Turmeric with Piperine. It’s the vitacost brand.
http://www.swansonvitamins.com/swanson-superior-herbs-curcumin-complex-875-mg-60-caps They also have cheaper formulations