OptiBac Probiotics 'For daily immunity' has been created especially for those looking for natural immune support. It contains the extensively researched strain Lactobacillus paracasei CASEI 431, as well as vitamin C which helps to support your body's resistance to infection and supports a healthy immune system. Suggested for daily use, each capsule provides 5 billion live microorganisms guaranteed until end of expiry. OptiBac Probiotics 'For daily immunity' is a unique combination of live cultures and vitamin C, which makes it particularly suitable for people with poor immunity, those who commonly suffer with colds or flu, for those with demanding or active lifestyles, or the elderly. L. paracasei CASEI 431 has been widely researched on thousands of people in numerous clinical trials and is proven to survive to reach the gut alive. This high quality strain is paired with vitamin C, which contributes to the normal function of your immune system and to the reduction of tiredness and fatigue. Each pack contains 30 capsules. This supplement, unlike many products containing live cultures, does not require refrigeration. This is thanks to advanced freeze drying techniques, as well as the strain being naturally robust to survive harsher conditions. 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.