Bio-Strath Fatigue & Stress- A natural, nutritional formula, rich in vitamins, minerals, amino acids, enzymes and trace minerals, offering powerful cell regeneration properties, and the promotion of optimal performance and maintenance of all body systems. Bio-Strath is a pure Yeast Plasmolysate Food Supplement that helps enhance immune system functions, reduce fatigue, improve mental functions, and is a powerful aid in convalescing.