HCP®70 is a High Potency Probiotic supplement featuring 8 human strains that implant healthy flora throughout the entire digestive tract. HCP®70 contains 100% human strains. Human microflora is the most compatible with your digestive system. It has the ability to colonize and multiply within the gastrointestinal tract whereas other forms (dairy and plant) sometimes fail to stick to the intestinal wall or simply die off after ingestion.