OptiBac Probiotics 'Bifidobacteria & fibre' is especially for those seeking a natural option. It contains Bifidobacterium lactis BB-12, thought to be the most researched strain of the entire Bifidobacterium family, as well as 4 g of FOS (Fructooligosaccharides) for natural fibre. This strain has been particularly researched for its effect on bowel regularity, and could help to support gut health in those with constipation. This supplement is safe and gentle, and highly researched in thousands of people including pregnant women and older generations, and is proven to survive to reach the gut alive. Suggested for daily use, each sachet provides 5 billion live microorganisms guaranteed until end of expiry. OptiBac Probiotics 'Bifidobacteria & fibre' is suitable for infants (one year+), women during pregnancy and breastfeeding, for vegans, vegetarians, and is also gluten free. Each pack contains 30 sachets. Unlike many products containing live cultures, this supplement does not require refrigeration. All OptiBac Probiotics strains are thoroughly researched and documented, so you can be confident you're getting a high quality supplement that's right for you.