Silver Fern™ Brand has developed the best ancestral probiotic for natural survival without the enteric coating or “time-release” gimmicks. Simply said, this is nature’s probiotic. The Ultimate Probiotic’s amazing blend is what our ancestors consumed off the land for thousands of years. This is the first formula to have three different classes of nature’s probiotics – spores, probiotic yeast, and acid stable pediococcus. While other probiotics test at a pH of 3 or higher, our Ultimate Probiotic has been proven by 3rd party lab tests to match the normal stomach pH and US Pharmacopeia standard of 1.2. If you are looking for the absolute best probiotic anywhere look no further than Silver Fern’s™ Ultimate Probiotic.