Postbiotics are non-living bacteria and do not die from gastric acid or bile acid. No, since he's already dead, he won't die. It is absorbed by the small intestine along with other nutrients. Also, since it is not probiotic, it is resistant to the external environment and has the advantage of being able to store room temperature for a long time. Of course, eating probiotics and prebiotics creates postbiotics. Nevertheless, why do you recommend taking postbiotics? In the process of digesting lactic acid bacteria, more than 90% of them are destroyed by strong stomach acid and digestive enzymes in our bodies. Since only about 10% survive and it takes a lot of time to produce metabolites, consuming postbiotics lactobacillus is the fastest and best way to achieve the effects of lactobacillus. - Probiotics + Lactulose Powder - Individual recognized prebiotics for intestinal health recognized by the Ministry of Food and Drug Safety of korea - lactulose powder validated by human application tests to help promote beneficial bacterial growth and inhibit harmful bacteria - Lactobacillus coated with the U.S. Patent (U.S. 2003/019025A1) by Rosell(company name) from canada - LACTO-5X™, combination formula of Lactofit [Directions and Cautions] Take 1 stick twice a day without water, before or after a meal. INGREDIENTS Lactobacillus powder, lactobacillus plantarum, lactobacillus powder (lactococcus lactobacillus lactis, lactobacillus plantarum, lactobacillus ramnosus, lactobacillus kazay, lactobacillus paracazay, bifidobacterium animalis lactobacillus, lactobacillus subatum, lactobacillus lactobacillus subatum) Lactobacillus helveticus, Bifidobacterium bifidum, Bifidobacterium longgum, Bifidobacterium brebe, Lactobacillus bulgaricus, Streptococcus thermophilus, Maltodextrin, Bifidobacterium Animalis, Streptococcus, Lactococcus, Lactobacillus Orange mixed extract powder, galacto-oligosaccharide, lactic acid culture powder milk, soybean content country of manufacturer: South Korea “The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom’s policies and EU Product Safety and Compliance laws.”