Dr. T.C. McDaniel practiced medicine from 1962-2008 in the same location in Cincinnati, Ohio. It was during this time in 1987 he wrote this book "Anionic Surfactant Therapy" - A Century of Research and Knowledge from Schulze & Hardy -- 1883 to NASA Space Age Medicine -- 1983. He wrote is book prior to writing his acclaimed book "Disease Reprieve". Read this manuscript to get a better understanding of the chemistry and principles of his product, Zeta Aid & his Zestful Wellness protocol.