Lab4 probiotics is a group of four human strains of friendly bacteria (probiotics), that have been researched, tested and cultured to enable large-scale product development. The consortium of bacteria was developed by Dr Nigel Plummer and his team of scientists with more than 30 years' experience in the probiotics industry and is a world-renowned expert on the mechanisms of action and efficacy of probiotics in supporting health. Lab4 is one of the most studied probiotic cultures in the world. Lab4 probiotics have been the subject of more than 12 major human clinical trials as well as over 100 basic and mechanistic scientific investigations. The Lab4 consortium of bacteria has been incorporated into many popular brands of probiotics.