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Choose your favourite friendly bacteria supplement(s) and tell us how often you want us to deliver. We'll take care of the rest.
£12.99
(inc. VAT)Pack size
FREE UK delivery on orders over £40.
Vegetarian
Vegan
Gluten free
During pregnancy
No dairy
During breastfeeding
Immune Support is a high quality good bacteria supplement with 5 billion Lactobacillus paracasei CASEI 431® as well as added Vitamin C. Great for anyone wanting to support the immune system and resistance to infection.
A supplement with added Vitamin C designed for those wishing to support their immune system. This strain has been extensively researched in thousands of people and is recommended for daily use, especially in the winter months. It is suitable for those over the age of 1 year.
Customer feedback collected via independent review platform Trustpilot. See more Immune Support reviews for more customer opinions collected via our own website.
Immune Support can be given to adults and children, from 1 year onwards, with the following recommendations:
All questions answered by probiotic experts Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Microbiology and Kerry Beeson BSc (Nut. Med.) Nutritional Therapist.
The simple answer is yes! Friendly bacteria have been researched for decades and the growing weight of evidence suggests that daily use is both safe and recommended.1,2,3 There’s no known risk of dependency or overdose: the human gut naturally contains trillions of micro-organisms, so the numbers found in supplements are modest by comparison. Friendly bacteria are found naturally in our diets, but not all strains do the same thing, so many people like to use a supplement that’s tailored to their individual needs.
Various factors affect the health of our immune system. Some of these we can’t control, such as cold, damp weather or stressful events, but there are many things we can easily do to help our immune systems fight off cold, viruses and infections. Include plenty of fruits and vegetables in your diet, limit alcohol intake, get a good night’s sleep, exercise daily, and wash your hands properly.
Many people also like to use supplements designed specifically to support the immune system, especially during winter months when coughs, colds and flu are especially common.
It’s best to choose supplements which contain ingredients which have been extensively researched and found to support the immune system, such as vitamin C, which helps to support a healthy immune system and your body’s resistance to infection. Optibac Immune Support contains 100% of your daily requirement of vitamin C along with one of the world’s most researched bacterial strains, Lactobacillus paracasei CASEI 431®.
Older people can be more vulnerable to colds and flu so may choose to take a supplement for extra support, but often have concerns about whether it’s safe for them to take live cultures. However, friendly bacteria supplements are safe to be taken by everyone from birth into old age 1,2.. There are only a few circumstances when live cultures may not be appropriate, such as for adults or children who are immune-compromised – please see our safety information for more details. If you have a serious health condition, you should always speak to your doctor before taking any supplement.
1. Jacobsen et al. (1999). 'Screening of probiotic activities of 47 strains of Lactobacillus spp. by in vitro techniques and evaluation of the colonisation ability of 5 selected strains in humans'. Applied and Environmental Microbiology; 65(11): 4949-4956
2. Doron, S., & Snydman, D. R. (2015). Risk and safety of probiotics. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 60 Suppl 2(Suppl 2), S129–S134. https://doi.org/10.1093/cid/civ085
3. Tomasz, B. et al, (2014). Long-term use of probiotics Lactobacillus and Bifidobacterium has a prophylactic effect on the occurrence and severity of pouchitis: a randomized prospective study. BioMed research international, 2014, 208064. https://doi.org/10.1155/2014/208064
4. Jespersen L. et al., (2015), ‘Effect of Lactobacillus paracasei subsp. paracasei, L. casei 431® on immune response to influenza vaccination and upper respiratory tract infections in healthy adult volunteers: a randomized, double- blind, placebo-controlled, parallel-group study’. Am.J.Clin.Nutr., 101:1188-1196.
Live cultures are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care. Keep out of reach of children.
This is a food supplement and is not intended to prevent, treat or diagnose any medical conditions. Probiotic supplements should not be used as a substitute for a healthy diet and lifestyle. If you are taking any medications or have a serious medical condition, consult a doctor before use. Optibac supplements will not cause dependency and may be used on an ongoing basis.
Vitamin C (80mg, 100% NRV*); stabiliser: maltodextrin (natural source); vegetarian capsule: hydroxypropyl methylcellulose; Live cultures: Lactobacillus paracasei CASEI 431®; anti-caking agent: vegetable magnesium stearate. *Nutrient Reference Value.
Each capsule guarantees 5 billion micro-organisms.
Following the taxonomic updates published in April 2020 which are intended to be adopted globally, this strain may now also be referred to as Lacticaseibacillus paracasei subsp. paracasei CASEI-431.
If you have a specific question or need some advice on which product to choose please contact our Nutrition Team on +44 (0) 1264 318 881 or click on the link below for our contact form.
Need help choosing a product?I genuinely feel my stomach is more settled after about 2 weeks. I’m guessing if my gut feels fine something is right which will lead to better health.
A huge thank you to OptiBac Advisor and Nutritionist Claire Foss for all her support and guidance around my digestive health and OptiBac products. Very happy to say that the gentleness of OptiBac is working well after a few weeks after many other brands did not agree my digestive system. The secret is trying different products, give them a few weeks each. I know you're eager to reduce your symptoms, but issues like this can take some time to resolve... keep going, and thanks again to Claire for her help.
My wife bought this for us last year and we've both been taking it ever since. So far so good - we're feeling well, good energy and regular in the gut health department!
Free standard UK delivery is automatically applied at the checkout when you spend £40.
Allow 4-10 working days (Monday - Friday) for delivery; no deliveries on Saturdays
Allow 1-3 working days (Monday - Friday) for delivery; no deliveries on Saturdays
Order before 2pm for guaranteed next working day delivery to most of the UK*. Orders placed on Friday will be delivered on Monday (next working day). Requires signature.
*Express delivery may exclude the Channel Islands, Herm Island, Isle of Man, Isle of Wight, Northern Irish postcodes BT18 & upwards, Sark, Scottish borders and offshore and a small number of remote mainland destinations as determined by our delivery courier.
We offer an excellent worldwide delivery service. For more details, please take a look at our delivery FAQ.