L-Reuteri

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L. Reuteri Supplements Australia

Lactobacillus reuteri (L. reuteri) is a probiotic species that colonises the human gut naturally and is distinguished from broader probiotic blends by its strain specificity. Products built around L. reuteri name particular strains – most commonly DSM 17938 and ATCC PTA 6475 – which have been studied individually and appear in the clinical literature under those exact designations, allowing you to match a product to what has been researched. For a broader look at probiotic categories, the Probiotics category covers the full range stocked at Fairfield Nutrition.

People choosing an L. reuteri product have generally narrowed to this species through a practitioner recommendation or prior research. The available formats span adult capsules, children’s chewables and lozenges, and oil-based drops for infants – so age group and delivery format are almost always the first decision to make.

Key principle: With L. reuteri, the strain designation – not the CFU count – is the primary quality signal; products that name specific strains (DSM 17938, ATCC PTA 6475) let you match what you are taking to what has actually been studied.

L. Reuteri products at Fairfield Nutrition

Product Brand Best For Key Ingredients / Notes
BioGaia Gastrus Pure Action L-Reuteri Probiotic – 60 capsules BioGaia Adults – dual-strain standalone Two patented human-derived L. reuteri strains (DSM 17938 + ATCC PTA 6475); vegan-friendly capsule
BioGaia Protectis Kids – 30 Chewable Tablets BioGaia Children – chewable format L. reuteri DSM 17938; strawberry-flavoured chewable tablet; formulated for children
BioGaia Prodentis Kids – 30 Lozenges BioGaia Children – oral lozenge format Two L. reuteri strains including DSM 17938; lozenge designed for oral delivery rather than gut delivery
BioGaia Protectis Baby Probiotic Drops – 5 mL BioGaia Infants and young babies L. reuteri DSM 17938 (Protectis); oil-based drops; 100 million CFU per 5-drop serving
Triple Probiotic Bundle Various Adults – multi-category protocol Combines spore-forming bacteria (MegaSporeBiotic), probiotic yeast, and an L. reuteri formula across three distinct probiotic categories

How to choose between L. Reuteri products

The clearest way to navigate these options is by age group and delivery format first, then by whether you need a single targeted strain or a broader multi-category protocol.

  • Adults – targeted dual-strain: BioGaia Gastrus is the adult standalone formula, combining the two most commonly cited strains (DSM 17938 and ATCC PTA 6475) in a vegan capsule. This is the appropriate choice for adults who have been directed to a specific L. reuteri product.
  • Children – digestive (chewable tablet): BioGaia Protectis Kids delivers DSM 17938 in a strawberry-flavoured chewable. The format is practical for school-age children and the strain matches the adult Protectis line.
  • Children – oral delivery (lozenge): BioGaia Prodentis Kids uses a lozenge format, which keeps the bacteria in contact with the oral environment longer than a swallowed tablet. The format is the key differentiator from Protectis Kids, not the age group.
  • Infants – oil drops: BioGaia Protectis Baby Drops are formulated for infants, delivered via an oil-based dropper that can be added to a feed or given directly. This is the only format suitable for very young babies.
  • Adults – multi-category bundle: The Triple Probiotic Bundle includes an L. reuteri product alongside spore-forming bacteria and probiotic yeast. This suits a practitioner-directed protocol that calls for multiple probiotic categories simultaneously rather than a single strain in isolation.

If in doubt about which format suits your situation, your practitioner is the best guide – particularly when deciding between a targeted single-strain approach and a broader probiotic protocol.

All L. reuteri products stocked at Fairfield Nutrition are shown below.

Box of BioGaia Gastrus Pure Action probiotic vegan capsules dietary supplement with 200 million CFU to soothe irritable bowel, supports abdominal discomfort, gas and bloating, with FODMAP friendly approval, contains 60 capsules
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BioGaia Gastrus Pure Action L-Reuteri Probiotic – 60 capsules

$54.80
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BioGaia Protectis Kids dietary supplement with chewable tablets in strawberry flavour, showing both the white and orange box and the white bottle with orange and black text and graphics, labeled to support beneficial gut and bowel flora and suitable for children from 3 years, containing 30 tablets.
Foundational

BioGaia Protectis Kids, L-Reuteri Probiotic, 30 Chewable Tablets

$38.88
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Triple Probiotic Bundle
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Triple Probiotic Bundle

Original price was: $180.40.Current price is: $171.20.
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Box of BioGaia Prodentis Kids probiotic lozenges with apple flavor, containing Lactobacillus reuteri to support healthy teeth and gums, suitable for children from 6 years, 10 lozenges per box
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BioGaia Prodentis Kids, L-Reuteri Probiotic, 30 Lozenges

$38.88
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BioGaia Protectis Kids, L-Reuteri Probiotic with Vitamin D
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BioGaia Protectis Kids, L-Reuteri Probiotic with Vitamin D

$41.20
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Bottle of Dentalflora Daily Oral Probiotics dietary supplement with 30 mint tablets by Biocidin Botanicals.
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Biocidin Dentalflora 30 tablets

$68.20
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Box and bottle of BioGaia Protectis Baby probiotic drops for infant colic relief, containing Lactobacillus reuteri, 5ml oral liquid
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BioGaia Protectis Baby Probiotic Drops – 5 mL

$36.50
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