Bio-Kult Boosted is an advanced multi-action formulation designed to target both the Immune System and Digestive Tract. With 4 times the concentration of bacteria compared to Bio-Kult Advanced, and added vitamin B12, Bio-Kult Boosted gives you the confidence that you are supporting the normal functioning of the immune system. Backed by clinical research, Bio-Kult Boosted is suitable for everyday use as part of a healthy lifestyle. Use alongside antibiotics and whilst travelling (no need to refrigerate).