This is a wonderful product, it increases absorption of all the supplements you take, but be careful because if you take it with a med it will increase absorption of that med also. This is wonderful for gastric by-pass receipents! I recommend this product very highly!!
I have been suffering from Chronic Fatigue Syndrome for almost 11 years now. I thought that I had actually got over it a few years ago, but I have always felt exhausted. After taking these Bioperine, along with my other supplements, I have a new lease on life. I know that it's a bit of a cliche, but I can't express how much better I feel. They work!