Grown in a very specific controlled environment, our SuperStrain Probiotic has a unique ability to form a spore (A Hardened protein coat). In this spore form, it is alive and well protected for harsh conditions like temperature, pH, humidity, and desiccation (excessive drying). When you use Probaxstra™, the spore enters in the harsh conditions of the human GI tract where it is exposed to low pH. As it passes through the stomach and entering into the small intestine, conditions are more suitable for growth. The spore then quickly changes into a vegetable cell, constantly growing and dividing to populate your gut with beneficial bacteria while crowding out bad bacteria.