Each lactic acid bacterium has its own feature.
It depends which type of lactic acid bacteria fits you. Yakult: Lactobacillus casei SHILOTA -an animal-based lactic acid bacterium found by Prof. Shirota of Kyoto University. Brevis: Lactobacillus Brevis subsp coagulans -the first bacterium sold as a product. -extracted from "Suguki" pickles. Shibazuke: Lactobacillus pentosus S-PT84 -from pickles called "Shibazuke". EC-12: Enterococcus faecalis EC-12 - smaller than other bacteria. Tannase: Lactobacillus plantarum 22A-3 -an kind of lactic acid bacteria all babies intake in the north canal. Caspian sea yogurt: Lactobacillus lactis subsp. Cremoris FC - extracted from Caspiansea yogurt. TRAIL S-1: Lactobacillus plantarum s-1