Mr. Mark is one of the leading manufacturers and leading supplier of probiotics,probiotic,lactobacillus acidophilus,lactobacillus reuteri,lactobacillus rhamnosus,lactobacillus plantarum,lactobacillus bulgaricus,lactobacillus paracasei,lactobacillus casei,streptococcus thermophilus,bifidobacterium lactis. Our products are known for reliability and high performance.