OptiBac Probiotics For Daily Immunity is a daily supplement to naturally support your immunity and energy levels. It contains a unique blend of live cultures and Vitamin C. Opti Bac Probiotics For Daily Immunity is a unique combination of Lactobacillus paracasei CASEI 431 which has been clinically trialled in thousands of people and vitamin C. Vitamin C helps to support a healthy immune system and your body\'s resistance to infection. This product is suitable for those looking for a natural immune support in preparation for the winter season, particularly those who often suffer with colds & flu. It\'s safe during pregnancy, Vegan, Gluten Free, Dairy Free and guarantees 5 billion live cultures per capsule, at expiry. SHELF STABLE - No refrigeration required, contrary to some other live culture supplements, Opti Bac selects strains that are naturally more robust within themselves, so they do not require refrigeration Suggested for daily use, each capsule pr s 5 billion live microorganisms guaranteed. This supplement is researched and proven to survive through stomach acidity and reach the gut alive.