OptiBac Probiotics is a UK based family business, focusing entirely on probiotics such as acidophilus. At OptiBac we take specific probiotic strains and target specific health conditions, such as bloating, immunity, diarrhoea, constipation etc. - This is what all the current research into probiotics shows - that different strains will have different effects on the body. The entire range is free from added sugar, flavours or preservatives. Visit our website now, and find out why we are the UK's best selling probiotic range. For more information see