The Gut Barrier, Colostrum and What Research Says
Explore intestinal-barrier science, colostrum studies and the three ingredients in IYRA’s scoop.
The gut barrier regulates what moves through
The intestinal lining regulates what moves between the gut and the rest of the body. Researchers study intestinal permeability with specific measures in specific conditions. It is part of normal gut function, not a wall that is either perfect or broken.[1]
Consumers use the phrase “leaky gut syndrome,” but a 2024 gastroenterology review says it is not an accepted formal diagnosis. The review reports no validated test for the syndrome and describes symptoms as nonspecific.[1]
The label lists ingredients, amount per serving and preparation directions. These details support a product choice grounded in package facts.
Start with the ingredient and serving
Bovine colostrum is the first milk cows produce after birth. IYRA’s formula pairs it with lactoferrin and marshmallow root powder; the label lists the amount of each ingredient.[3]
Read the colostrum amount, note that IgG sits within that amount, then check the two additions and package directions. The panel names each ingredient and the scoop you prepare.
Research asks focused questions
Human studies have examined colostrum under specific conditions. To understand their findings, note the participants, dose, duration and measured outcomes.

IYRA Gut-healing formula Colostrum
Colostrum. Lactoferrin. Marshmallow root. One unflavored scoop.
- Bovine colostrum
- 2,000 mgIncludes 400 mg IgG
- Bovine lactoferrin
- 50 mg
- Marshmallow root powder
- 500 mg
Per 2.55 g scoop · 30 servings
76.5 g tub · Unflavored
Contains milk.
Explore IYRA ColostrumExplore ingredients, directions and suitability on the product page.
What the three-ingredient scoop contains
One 2.55 g scoop contains 2,000 mg colostrum, including 400 mg IgG within that amount, 50 mg bovine lactoferrin and 500 mg marshmallow root powder. The IgG is part of the colostrum total. The label lists marshmallow root as powder, not extract.
The label lists each ingredient, form and amount per serving. The short panel names the formula instead of grouping the ingredients in an unnamed proprietary mix. Compare its quantities with your preferences.
A 76.5 g tub contains 30 servings; each 2.55 g scoop sets the portion. Read the panel and package directions, then choose water or a beverage for mixing.
Mix one scoop into water or a beverage
Take one included scoop (2.55 g) daily with 8 fl oz of water or a hot or cold recipe. The powder is unflavored. Check your package for the full serving directions.
Mix the unflavored powder into a drink you make in the morning or afternoon. Follow the package direction, then return to your routine. The preparation takes a scoop and a beverage.
IYRA’s label lists milk, so review the complete package ingredient and allergen information. If digestive symptoms recur, ask a clinician about your situation. Research describes study settings; the package lists what this scoop contains.
Let the label guide your choice
If you value a short formula, compare IYRA’s three ingredients, amounts, unflavored powder and serving direction with your preferences and the package details.
Read ingredient names, serving size and package directions before you choose. For symptoms that persist or change, speak with a clinician. The label lists this product’s formula.
Common questions
Is leaky gut syndrome a formal diagnosis?
A 2024 gastroenterology review says “leaky gut syndrome” is not an accepted formal diagnosis and reports no validated test for the syndrome.
What did the colostrum research measure?
One small exercise study measured a urine permeability marker after a treadmill challenge. A separate IBS pilot measured symptoms, quality of life, and endotoxin.
What is in IYRA’s scoop?
One 2.55 g scoop lists 2,000 mg colostrum including 400 mg IgG, 50 mg bovine lactoferrin, and 500 mg marshmallow root powder.
How do I mix the unflavored powder?
Take one included scoop (2.55 g) daily with 8 fl oz of water or a hot or cold recipe. Check your package for the full serving directions.
Colostrum.
The IYRA way.
Three ingredients. One unflavored scoop. See the colostrum, lactoferrin and marshmallow root blend; check the package directions.
Contains milk. Not suitable for someone with a milk allergy.
Explore IYRA ColostrumSources & further reading
These sources cover the topic and cited research. None tests the finished IYRA formula.
- Leaky Gut Syndrome: Myths and Management
A 2024 gastroenterology review distinguishes regulated intestinal barrier function from the popularized “leaky gut syndrome” label. It says the label is not a formal accepted diagnosis, symptoms are nonspecific, and no validated test diagnoses the syndrome.
- The nutriceutical bovine colostrum truncates the increase in gut permeability caused by heavy exercise in athletes
A 12-person, double-blind crossover study tested 20 g/day of bovine colostrum for 14 days before a standardized strenuous exercise challenge. Researchers measured an exercise-related urine permeability marker. The study did not measure meal-related bloating or test IYRA’s 2 g colostrum serving.
- Effect of Colostrum on the Symptoms and Mucosal Permeability in Patients with Irritable Bowel Syndrome: A Randomized Placebo-controlled Study
A small randomized, placebo-controlled study enrolled 18 adults with IBS. Participants received 15 mL per day for 4 weeks, followed by 4 weeks of observation. Between-group differences in symptoms, quality of life and endotoxin did not reach statistical significance.
