Hi, I used Vitol Coq10 for several years I felt like I could tell a big difference when using this product. In fact I felt is was the best on the market for any price. They stopped manufacturing it a while back and here is what I believe happened and I've seen this happen before with other produces that really work. I believe that a pharmaceutical company bought out the Coq10 from Vitol and stopped making it because it worked and was a threat to them. I was providing the Vitol to a friend who has Parkinson's Disease and they were getting better control of there problems. I also read from a consumer site that Vitol was less that 4% CoQ10 and I don't believe that what so ever. At this time I use Now Foods CoQ10 600 mg.