Optibac probiotics for travelling abroad is the key probiotic blend for holidays abroad it is an expert formula of friendly bacteria including l acidophilus and s boulardii developed for the digestive health and immune system whilst abroadwhats it for to be taken prior to and during travels abroad to maintain immunity and help support a healthy digestive systemwhos it for for travellers seeking advanced probiotic support for digestion and immunity in foreign environments such as india egy