Immune & Digestive Drops for Babies and Toddlers

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What is it?

Did you know the first 1000 days from birth is a critical window for your baby’s microbiome development?

SMART STRAINS for fussy babies is specially formulated with Bifidobacterium lactis, BB-12[sup]®[/sup] - the world's most published Bifidobacterium strain - based on recommendations from the World Gastroenterology Organisation Guidelines on Probiotics and leading Paediatric guidelines, for fussy babies.

Each daily dose provides the recommended 1 billion live bacteria, replicating the exact bacterial formula and dose used in scientific trials. Also includes 10μg Vitamin D[sub]3[/sub], as recommended by the NHS for all babies and children up to 4 years of age. Vitamin D[sub]3[/sub] helps support the normal functioning of your baby’s immune system.

Why choose SMART STRAINS®?

Probiotic science has evolved and SMART STRAINS® is leading the live bacteria revolution.

The notion that all live bacteria have similar effects, and that you need to take one daily for general gut health is outdated.

Just as you wouldn't take an iron supplement for a vitamin D deficiency, the latest gut microbiome science tells us how important it is to get specific - we should be taking the right strain, at the right time, in the right way.

Formulated by The Gut Health Doctor®, SMART STRAINS® is a family of targeted live bacteria supplements that use evidence-based live bacterial strains, backed by international health bodies, to help you support your baby's gut microbiome.

Who is it for?

Safe to use from birth to 12 months and beyond. Give once daily, for a minimum of 21 days. SMART STRAINS® for fussy babies is dairy & gluten free, and contains no added emulsifiers, sugars, sweeteners, colours, flavours or preservatives.

How to take?

Shake bottle for at least 10 seconds to wake bacteria. Turn bottle upside down to dispense drops onto spoon, into liquid or directly onto baby's tongue.

Each daily dose of 6 drops provides the recommended 1 billion live Bifidobacterium lactis, BB-12[sup]®[/sup] and 10μg of Vitamin D[sub]3[/sub]

What's in it?

Ingredients: High oleic sunflower oil, Bifidobacterium lactis, BB-12® (1 billion), vitamin D[sub]3[/sub] (10µg, 100% Reference Intake).

Delivery and returns

Get free Royal Mail tracked 24-hour delivery on all orders over £30.

For orders below £30, you can choose between Royal Mail tracked 48 (for an additional £2.99) or Royal Mail tracked 24 (£3.99).

Monday - Friday same day dispatch on orders placed before 1pm. Saturday same day dispatch on orders placed before 11am. Any orders placed after these times will be dispatched on the following weekday.

Currently we are only able to deliver across the UK and its territories. But please register your interest and we’ll let you know as soon as international shipping is available.

Standard delivery times are:
Royal Mail Tracked 48 - 2-3 working days (subject to Royal Mail Terms and conditions)
Royal Mail Tracked 24 - The next working day (subject to Royal Mail Terms and conditions)

We are unable to guarantee these delivery times, and they may differ depending on the time of the year (see here for more information)

When your little one is unsettled, the whole family feels it.


Gentle, targeted support for tiny tummies with live bacteria BB-12® & Vitamin D3 – scientifically formulated to support their gut microbiome and immune system from birth.

Dr Megan Rossi offering a pack of SMART STRAINS for fussy babies to you
Mother soothing baby with colic
SMART STRAINS for fussy babies drops being poured onto a teaspoon

How SMART STRAINS® works

Specifically designed with the science in mind

  • The Right Strain

    Bifidobacterium lactis BB-12® is recommended* by the World Gastroenterology Organisation Guidelines on Probiotics and leading Paediatric guidelines, for fussy babies.

  • The Right Time

    Safe to use from birth to 12 months and beyond. Give once daily, for a minimum of 21 days.

  • The Right Way

    Directions: Shake to wake, for at least 10 seconds. Turn bottle upside down to dispense drops onto a spoon, into liquid, or directly onto baby’s tongue.
    Dosage: 6 drops per day. Provides the recommended* 1 billion live BB-12® + 10μg vitamin D3

Read the Science

We're not like other baby live bacteria supplements. Here's why.

    SMART STRAINS[sup]®[/sup] Immune & Digestive Drops for Babies and Toddlers

    Strain backed by leading paediatric guidelines on probiotics
    Exact strain and dose as recommended by the World Gastroenterology Organisation (WGO), for fussy babies
    Formulated by a leading scientist (and mum) with an award-winning PhD in probiotics
    Contains 100% of the daily reference intake of vitamin D[sub]3[/sub] for babies recommended by the NHS to support the immune system
    Safe from birth
    No added sugars, sweeteners, emulsifiers, bulking agents, flavours or preservatives

    Other Baby Probiotic Brands

    Strain backed by leading paediatric guidelines on probiotics
    Exact strain and dose as recommended by the World Gastroenterology Organisation (WGO), for fussy babies
    Formulated by a leading scientist (and mum) with an award-winning PhD in probiotics
    Contains 100% of the daily reference intake of vitamin D[sub]3[/sub] for babies recommended by the NHS to support the immune system
    Safe from birth
    No added sugars, sweeteners, emulsifiers, bulking agents, flavours or preservatives

70

%

of regular users of live bacterial supplements find it difficult to choose the right supplement

60

%

of people do not check the specific bacterial strains they are buying

51

%

are unaware that different probiotic strains treat different conditions

We’re Credible.

We’re Trusted.

We’re Trailblazers.

If you’re confused about live bacterial supplements, you’re not alone. That’s where SMART STRAINS® steps in. We’re here to the bring clarity and education.[sup]1[/sup]

Read the Science

The Right Strain

The Right Time

The Right Way

Dr Megan Rossi The Gut Health Doctor

Formulated by Dr Megan Rossi The Gut Health Doctor®

The Gut Health Doctor®, Dr. Megan Rossi (PhD, RD) is a leading dietitian, nutritionist, and gut health authority with an award-winning PhD in probiotics. With SMART STRAINS®, she is revolutionising how people take live bacteria to care for them and their families, one strain at a time.

Read the Science

Customer Reviews

Don't just take our word for it, here's what customers are saying about SMART STRAINS®

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Our range of scientifically-proven formulations are targeted at specific everyday needs that affect every member of the family. From immune support to fussy babies, our range provides the right strain, at the right time, in the right way to care for you and your family.

References

1. Data on File. January 2025. Opinium Research - Independent Survey of 2000 people reflective of the UK population