I follow many of the laboratory reviews of the products from several companies and I always come up with the best of products produced by Life Extension. You can use Consumer Labs for some of their results on their investigations. I have taken these products since they first began in the early '80s before they became Life Extension and when Durk and Sandy were doing their crazy experiments. I continued during the time they were a pyramid company. I only wish now that I had been able to participate in their pyramid but I didn't because I could afford it. And I was working so much I didn't have time to try to sponsor anyone else. Since then I have been using their products and wouldn't do without them. I began in about 1983, or thereabouts, and have continued since then and am now 82 years young.
Bottom Line: Yes, I would recommend this to a friend