ConsumerLab.com tests alpha lipoic acid supplements.

ConsumerLab.com, White Plains, NY, has found that two of 11 alpha lipoic acid supplements that it recently chose to test contained significantly less ingredient than promised on their labels. Alpha lipoic acid can degrade if mixed with certain compounds, such as thiamin. After reviewing the recent test results, ConsumerLab.com's vice president for research, Dr. William Obermeyer, noticed that thiamin was listed as an ingredient in a product that yielded only half of the claimed amount of alpha lipoic acid. Dr. Obermeyer noted that, "This supplement was doomed to failure by its very formula. Ironically, it was among the most expensive products and its label touted unsurpassed quality and integrity." The second product that failed testing contained 88% of its claimed amount.