Babies & Children Probiotics

30 sachets |1 month's supply

Dr Sasivimol Ahmed PhD, PG Dip (Personalised Nutrition), BSc (Food Science)
Lactobacillus rhamnosus GG is the world's most researched friendly bacteria strain, clinically trialled in infants and school children.
Dr Sasivimol Ahmed
Dr Sasivimol Ahmed PhD, PG Dip (Personalised Nutrition), BSc (Food Science)

Who is it for?

Developed especially for babies and children, this probiotic supplement contains a unique blend of 3 of the most scientifically researched strains for children from birth to 12 years, as well as prebiotic FOS and added Vitamin D3. These strains have been shown to support digestive and immune health and wellbeing.

Buy online from our UK website
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  • Vegetarian


  • Dairy free

    Dairy free

  • Gluten free

    Gluten free

  • GMO free

    GMO free

  • No added sugar

    No added sugar

Key benefits

Probiotics for children

Created especially for babies, toddlers, and children up to 12 years old.

  • Highly researched Contains three high-quality probiotic strains, including L. rhamnosus GG, the most scientifically studied strain in the world
  • Expertly formulated children’s probiotic Suitable for use from birth to 12 years, with strains of probiotic bacteria natural to the infant gut
  • Gut and immune support Clinically trialled in thousands of infants and toddlers, and shown to support children’s digestive and immune health*
  • Scientifically proven Shown to survive stomach acidity and reach the gut alive
  • With prebiotics and Vitamin D3 Contains added prebiotic FOS to increase natural gut bacteria and Vitamin D3 to maintain immune health*
  • A more natural option Vegetarian and gluten free, and no added sugars, artificial flavors or colors
  • Easy to use Comes in a flavorless powder format that can be taken alone or mixed into cool, non-acidic food or drinks. No refrigeration necessary
  • Most trusted by UK parents Optibac is the brand of friendly bacteria supplements most trusted by parents in the UK

Probiotic strains

  • Bifidobacterium breve M-16V®
  • Lactobacillus rhamnosus GG
  • Lactobacillus rhamnosus HN001

Added nutrients

  • Vitamin D3
  • Prebiotics FOS
See full ingredients list

General digestive


Complements gut bacteria

Customer Reviews

Customer reviews have been collected on our website or independently through Trustpilot where no moderation is possible. Reviews are not endorsed by us and should not be regarded as medical or health advice. For supplement advice, you can speak to one of our qualified experts. The top 3 reviews have been selected from our website, please click view all to explore more customer feedback.

Help & advice

Our team of qualified experts are available for free personalised supplement advice. If you're not sure where to start or your needs have recently changed, please get in touch.

Louise Mason
Louise Mason BA(Hons) DipCNM Nutritional Therapist, DipCNM Naturopath, mANP
  • How to use

  • Ingredients

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  • Delivery & returns

  • How to use


    • Best taken with a meal, preferably with breakfast.
    • Simply mix with your child's favorite foods or drinks - sprinkle the powder over cereal, mix in with yogurt or dissolve in water or cold milk.
    • Can be taken with formula milk - simply add to the bottle once it has cooled down to room temperature (as heat reduces the viability of natural bacteria).
    • For breastfed babies, powder can be applied to nipple or clean finger for baby to suckle.

    Recommended amount

    Babies & Childres can be given to children, from birth to 12 year old with the following recommendations:

    • Give one sachet daily.
    • If desired or professionally directed, can be increased to 2 sachets a day.

    Looking for a delicious alternative for children aged 3 years+? Try our new friendly bacteria fruit gummies for kids.

    Storage instructions

    Store in a cool, dry place below 25°C (77°F) and out of direct sunlight.

    If your children prefer drops or gummies, then check out our other highly researched, specifically formulated kids’ probiotic products in our Shop.


    Probiotics 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, infants with short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care. Keep out of reach of children.

    Gut health supplements are not intended to prevent, treat or diagnose any medical conditions. If taking probiotic supplements for gut health, note that these should not be used as a substitute for a varied and balanced diet and a healthy 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.

  • Ingredients


    Maltodextrin, prebiotic (FOS, 500mg), Probiotic blend: Bifidobacterium breve M-16V®, Lactobacillus rhamnosus GG, Lactobacillus rhamnosus HN001, Vitamin D3 (2.5mcg/100IU)

    Supplement fact panel of Babies & Children


    • Vegetarian
    • Dairy free
    • Gluten free
    • Yeast free
    • Soy free
    • GMO free
    • No added sugars
    • Free from artificial flavorings, colorings and preservatives
    • No chemicals or parabens
    Format Powder
    CFU 3 billion
    Added Ingredients Vitamin D3
    FOS Fibres
    Recommended Use 1 sachet daily
    Age Range Newborn to 12 years
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  • Delivery & returns

    USA standard shipping: $4.99 

    International postal order - typically deatched and delivered within 5-10 working days.
    Free standard shipping on orders over $60.

    USA express shipping: $6.99 

    We use DHL and orders are typically dispatched and delivered within 2-5 working days.

    Good to know

    • We'll send you an email to confirm once your parcel has been dispatched.
    • For delivery queries, please email
    • We are unable to ship orders to PO boxes.
    • Product prices on this website are always shown in US dollars (USD $) and exclude tax - tax is not applicable as orders are fulfilled from the UK.

    Worldwide Delivery

    • We deliver to more than 50 countries.
    • Shipping is charged at cost - please note that duties may apply.
    • Please allow 3-7 working days for delivery within Europe and 5-12 days to all other destinations. Includes order tracking.  
    • If you are located within the United Kingdom or Europe, we recommended switching to our UK website.
    • International deliveries might currently take a little longer due to the global coronavirus situation. Please refer to the webpage of our international delivery provider DHL to confirm the number of days it takes to receive your order and whether they currently ship to your country.
    • Most international delivery prices are dependent on the size and weight of your order and where it is being sent. You'll be shown the final price of shipping in the checkout, before payment, once we have your address and order details.
    • Long distance shipping and short-term exposure to high temperatures will not compromise the viability of our products. Customers living in very hot countries should store the products out of direct sunlight and refrigerate if the option is available.

    For more details regarding international orders, currency conversion and applicable tax for orders outside the USA, please take a look at our delivery FAQ.


    If you have changed your mind, you can return goods, at your cost, unopened within 14 days for refund or exchange, this does not affect your statutory rights.

Customer Questions

All questions answered by probiotic experts Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Biology and Helen Morton BSc (Hons) DipION Nutritional Therapist

Probiotics are very safe1,2 and you can’t ‘overdose’ on them. But in general, it's best to stick to our recommended daily amount of 1-2 sachets - especially if your child takes other vitamin supplements containing Vitamin D – keep an eye on their daily Vitamin D intake. If you have any concerns, please contact our nutrition team.

Read references

Yes, Optibac Probiotics Babies & Children is vegetarian, and it’s also gluten and dairy-free. There is no dairy present at any stage of the manufacturing, and the live cultures strains are vegan, but the added Vitamin D3 is vegetarian.

Optibac Probiotics Babies & Children is an ideal alternative to BioKult Infantis. Like BioKult Infantis, Optibac Probiotics Babies & Children probiotic sachets contain added Fructooligosaccharide (FOS) fibres to maintain natural gut bacteria, and Vitamin D to support immune health. But unlike BioKult Infantis, Optibac Probiotics Babies & Children is dairy-free, vegetarian, and contains the world's most researched live cultures strain1, Lactobacillus rhamnosus GG, extensively studied in infants and children.

Read references

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