Stephen Levine did his graduate work at UC Berkeley in molecular genetics and started Allergy Research Group® in 1979, and the company became intimately recognized as the work of Stephen. He has published numerous technical and lay articles in a variety of nutritional medical publications, lectured broadly, and is best known for the book Antioxidant Adaptation, which launched a new and indepth integration and illucidation of the profound role of free radical reactions and how antioxidant deficiencies play out in the lives. Coauthored with Dr. Parris Kidd, also from Berkeley, the book is still remembered and Stephen was honored with a Townsend Newsletter interview, on the October 2016 cover, which highlighted the many products he developed and or first introduced into the industry. The research he is best known for are free radical chemistry and inducible antioxidant defenses, along with their foundational importance as regulation of stress and stress reduction. The regulation of free radical and other oxidative stress is critical in underlying factors in many diseases.