Problem Solving Lab BIFIRAL+ Bifiral Plus Lactic Acid Bacteria Supplement. This product is a functional food that improves constipation by reaching the intestines alive and improving the intestinal environment. Made in Japan. Contains butyric acid bacteria, bifidobacteria, oligosaccharides, lactoferrin, inulin, kombucha, and probiotics. 30 days' supply. This will be shipped in an envelope as is. Please understand that this item has been stored at home.