Don't bother, they are expensive, and if you ever get to read the labels they are no different than a lot of other products. In fact some of their formulas use older, proven gimmicky stuff.. e.g. siberian ginseng, gamma oryzanol, etc. etc. No better, no worse, but I don't like the fact the company and its reps avoid at all costs disclosing any hard details or ingredient lists about the products, and try their best to discourage direct comparison.