Digestive Comfort & Probiotic Support

Biogaia Gastrus 30 Caps

By BioGaia
$49.95
Targeted two-strain L. reuteri probiotic providing 200 million CFU per capsule to support digestive health, regular bowel function and gut flora while helping relieve abdominal discomfort, wind and bloating associated with medically diagnosed IBS.
200 Million CFU
IBS Symptom Support
Bloating & Wind Support
Regular Bowel Function
FODMAP Friendly
Vegan
Always read the label and follow the directions for use.
Curated Wellness
Fast Dispatch
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Why you’ll love it
  • Provides 200 million CFU per capsule
  • Contains two patented L. reuteri strains
  • Clinically shown to help relieve symptoms of medically diagnosed IBS
  • Helps reduce abdominal discomfort, wind and bloating
  • Supports regular bowel function
  • Helps reduce occurrence of diarrhoea
  • Helps maintain good gut flora during antibiotic use
  • Certified FODMAP Friendly
  • Vegan and non-GMO
  • No refrigeration required when stored below 25°C
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Clear Product Information

Ingredients, directions and key product details presented clearly in one place.

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Carefully packed and dispatched promptly across Australia.

Biogaia Gastrus 30 Caps

Key Benefits

A clear look at what this product is designed to support.

Gastrus Pure Action combines two patented and clinically researched L. reuteri strains to provide targeted probiotic support for digestive comfort, bowel regularity and a balanced gastrointestinal environment.

Digestive Comfort

Helps relieve abdominal discomfort, wind and bloating associated with medically diagnosed IBS.

Regular Bowel Function

Supports normal bowel function and digestive regularity as part of everyday gastrointestinal health.

Healthy Gut Flora

Helps maintain beneficial gut flora, including during antibiotic use, while supporting gastrointestinal balance.

Two Researched Strains

Combines L. reuteri DSM 17938 and ATCC PTA 6475, two patented probiotic strains shown to survive gastrointestinal transit and reach the gut alive.

Why it works

Ingredient Spotlight

A closer look at the formula.

Gastrus Pure Action focuses on two specific human-origin L. reuteri strains rather than a large multi-strain blend, providing targeted and well-researched probiotic support.

L. reuteri DSM 17938

L. reuteri DSM 17938

Provides 100 million CFU per capsule of the extensively researched DSM 17938 probiotic strain for gastrointestinal and digestive support.

L. reuteri ATCC PTA 6475

L. reuteri ATCC PTA 6475

Provides 100 million CFU per capsule of ATCC PTA 6475, paired with DSM 17938 in BioGaia’s patented Gastrus blend.

Gastrus™ Dual-Strain Blend

Gastrus™ Dual-Strain Blend

Together, the two L. reuteri strains provide 200 million CFU per capsule and are clinically researched for gastrointestinal survival and digestive support.

Product Information

Everything you need to know

BioGaia Gastrus Pure Action is a targeted two-strain probiotic formulated for adults seeking support for medically diagnosed IBS symptoms, digestive comfort, bowel regularity and healthy gastrointestinal flora.

200 million CFU per capsule
2 patented L. reuteri strains
Certified FODMAP Friendly
1–2 capsules daily
“Focused probiotic support for digestive comfort, bowel regularity and a balanced gastrointestinal environment.”
Key Ingredients ⌄

Each capsule contains:

  • Lactobacillus reuteri DSM 17938 — 100 million CFU
  • Lactobacillus reuteri ATCC PTA 6475 — 100 million CFU

Total probiotic count — 200 million CFU per capsule

How to Take ⌄

Adults: Take 1–2 capsules daily. Swallow with water and use regularly for digestive health. Do not exceed the recommended daily dose.

The product may be used during pregnancy and breastfeeding.

Warnings ⌄
  • Always read the label and follow the directions for use.
  • Do not exceed the recommended daily dose.
  • If symptoms persist or worsen, consult your healthcare professional.
  • Seek medical advice if diarrhoea persists for more than 48 hours in adults and children over 6 years.
  • Dietary supplements should not replace a balanced diet.
  • Store below 25°C in a cool, dry place.
  • The manufacturer states that Gastrus Pure Action can be used during pregnancy and breastfeeding.
Allergens & Dietary Information ⌄

Suitable for:

  • Vegan diets
  • Vegetarian diets
  • FODMAP-friendly diets
  • Non-GMO preference

Free from:

  • Gluten
  • Milk protein
  • Lactose

Current practitioner retailers additionally report no added:

  • Wheat
  • Yeast
  • Soy
  • Egg
  • Nuts
How to Use

Simple and straightforward

Gastrus Pure Action has a simple daily routine: take one to two capsules with water and use consistently for digestive support.

Always follow the label and practitioner guidance.
1

Take 1–2 Capsules

Take 1 to 2 capsules daily according to your needs and practitioner guidance.

›
2

Swallow With Water

Swallow the capsule whole with water.

›
3

Use Consistently

Take regularly for digestive health and do not exceed the recommended daily dose.

›
Practitioner Guidance

A practitioner-led approach

“Gastrus Pure Action combines two specific L. reuteri strains in a focused probiotic formula for practitioner-guided support of digestive comfort, bowel regularity and gastrointestinal flora.”

Victoria O'Sullivan
Victoria O'Sullivan Naturopath

Two Patented Strains

Combines L. reuteri DSM 17938 and ATCC PTA 6475, providing targeted rather than broad multi-strain probiotic support.

IBS & Digestive Support

The Gastrus™ combination is clinically researched for relief of abdominal discomfort, wind and bloating associated with medically diagnosed IBS.

Shelf-Stable Convenience

The vegan capsule is shelf stable below 25°C, so refrigeration is not required for everyday use.

What Our Customers Say

Real reviews. Real experiences.

Read experiences shared by customers who have used products from our wellness range.

★★★★★

“My practitioner recommended Gastrus because I wanted a targeted probiotic rather than a huge multi-strain blend. I like that it’s only one or two small capsules a day and doesn’t need refrigeration.”

Hayley D.
✓ Verified Purchase
★★★★★

“I appreciate that the two probiotic strains are clearly identified and that the product is FODMAP friendly. The capsule is small and very easy to take each day.”

Michaela R.
✓ Verified Purchase
★★★★★

“A simple daily probiotic that fits easily into my routine. Being vegan, lactose free and shelf stable makes it especially convenient when I’m travelling.”

Elise C.
✓ Verified Purchase
Frequently Asked Questions

Got a question?

Helpful answers about this product, how to use it and what to know before purchasing.

What is BioGaia Gastrus Pure Action designed to support?⌄

Gastrus Pure Action is formulated to support digestive and gastrointestinal health and is clinically shown to help relieve symptoms of medically diagnosed IBS, including abdominal discomfort, wind and bloating.

Which probiotic strains are in Gastrus Pure Action?⌄

Each capsule contains 100 million CFU of L. reuteri DSM 17938 and 100 million CFU of L. reuteri ATCC PTA 6475, providing 200 million CFU in total.

How do I take BioGaia Gastrus?⌄

Adults should take 1–2 capsules daily. Swallow the capsule with water and use regularly for digestive health. Do not exceed the recommended daily dose.

Does BioGaia Gastrus need refrigeration?⌄

No. Gastrus Pure Action is shelf stable when stored below 25°C in a cool, dry place, so refrigeration is not required.

Is Gastrus Pure Action vegan and suitable during pregnancy?⌄

BioGaia lists Gastrus Pure Action as vegan and free from gluten, milk protein and lactose. The manufacturer also states that the product can be used during pregnancy and breastfeeding.