I have used piperine for 3 months, it is perfect. It came on time. It was exactly as advertised and was perfect. Each capsule was full and there was no spillage. Easy to take with no complications.
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!