Colostrum

Colostrum

Boosts immune system naturally and effectively.

Stress Resilience Gut Defense

 

Nature’s First Superfood — For Total Immune & Gut Support

Restore & Strengthen Your Immune System

 

Our Colostrum supplement delivers 90+ biologically active compounds—including:

  • Immune Factors
  • Growth Factors
  • Enzymes & Antibodies
  • Essential Nutrients

These powerful components help support immunity, recovery, digestion, and cellular health—naturally.


 

Pure. Potent. Premium.

  • 🐄 Sourced from Grass-Fed Cows in pristine New Zealand pastures
  • 🍼 Collected from the first two milkings—when nutrients are most concentrated
  • 🚫 No additives, no fillers—just clean, fresh colostrum in every capsule

 

 Why Colostrum?

✔ Supports a strong immune response
✔ Aids gut repair and intestinal lining health
✔ Enhances recovery & cellular regeneration
✔ Ideal for times of stress, fatigue, or immune imbalance


Your Body’s First Defense. Now In a Capsule.

Harness the power of nature’s original immune booster—backed by science, trusted by generations.

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Strengthens immune system
Restores digestive harmony
Supports natural healing
Enhances nutrient absorption
$29.99 USD
$29.99 USD
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Advanced Gut & Stress Support – Backed by Science

Clinically Studied Adaptogens & Nutrients for Total Gut Balance
Science-Backed Formulas Clinically studied ingredients for real results.
Satisfaction Guaranteed 180-day money-back promise for risk-free wellness.
Restore Your Gut Now
Immune Boost Rich in antibodies that help strengthen the body’s natural defenses.
Gut Repair Supports healing of the gut lining and improves intestinal integrity.
Nutrient Absorption Enhances absorption of key nutrients for better overall wellness.
Pure Quality Sourced from grass-fed cows in New Zealand. Our colostrum is free from additives, preservatives, and hormones for pure wellness.
Immune Boost Rich in antibodies that help strengthen the body’s natural defenses.
Gut Repair Supports healing of the gut lining and improves intestinal integrity.
Nutrient Absorption Enhances absorption of key nutrients for better overall wellness.
Pure Quality Sourced from grass-fed cows in New Zealand. Our colostrum is free from additives, preservatives, and hormones for pure wellness.
Restore Your Gut Now

Pure Ingredients, Sensational Experience

Every Capsule is packed with carefully selected, plant-based ingredients to deliver a natural, powerful, targeted solution.

Colostrum 800 mg

Rich in immune-boosting antibodies for protection.

Lactoferrin 20mg

Promotes healthy gut flora balance.

Immunoglobulins 800 mg

Essential proteins that strengthen immune function.

Proline-Rich Polypeptides 8mg

Regulate immune responses and inflammation.

Growth Factors 5mg

Supports cellular repair and regeneration.

Vitamin A 7mg

Supports vision and immune system health.

Colostrum 800 mg

Rich in immune-boosting antibodies for protection.

Lactoferrin 20mg

Promotes healthy gut flora balance.

Immunoglobulins 800 mg

Essential proteins that strengthen immune function.

Proline-Rich Polypeptides 8mg

Regulate immune responses and inflammation.

Growth Factors 5mg

Supports cellular repair and regeneration.

Vitamin A 7mg

Supports vision and immune system health.
Empower Your Health with Pure Ingredients
NO CHEMICALS
SUSTAINABLE
vegan-friendly
TOXIN-FREE
CRUELTY-FREE
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Intestinal Fortitude provides top quality supplements. I have seen profound results in my clients when using their various formulas. They are thoughtfully created and do fantastic things to heal the gut. I was thrilled to discover Intestinal Fortitude and will be using their products forever!

Emily D., Functional Nutritional Therapist

Better Ingredients. Better Science. Better Results.
Not all supplements are created equal. See why our formulas stand out with superior ingredients, purity, and effectiveness.
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Backed Science

Clinically Proven Blend

Gut-Focused

Personalized Solutions

Proven Results

Pure & Clean Formula

Zero Artificial Additives
No Unnecessary Fillers
Zero preservatives
Zero Soy
Zero Common Allergens
Zero Gluten

Decades of Science in Every Capsule

Backed by cutting-edge research, our formulas combine the latest advancements in gut health and inflammation support. We use only the most effective, clinically studied ingredients to help you feel your best every day.
Feel Better
Science-Backed Wellness
Clinically Clean Formulas
Targeted Gut Support
Rigorously Lab Tested

the Intestinal Fortitude 180-Day Healthier You Guarantee.

We stand behind the quality and effectiveness of all our products. If you try any of our supplements and feel they aren’t the right fit for you, we offer a 180-day, no-questions-asked, money-back guarantee.
Frequently Asked Questions

Strengthens immunity, repairs gut lining, reduces inflammation, and improves nutrient absorption.

Yes. Our supplements are made with high-quality, natural ingredients.

Results can vary depending on your body and health goals. Some people experience noticeable improvements in digestion, recovery, or energy within a week, while deeper gut support and healing may take a few weeks of consistent use.

For Colostrum, take 1-2 capsules daily on an empty stomach for a body boost that supports gut function and digestive health, and also supports immune health. Always follow the instructions on the label and consult your physician if unsure.

Yes, colostrum is generally safe for daily use and well-tolerated by most people.

Real Stories, Real Results
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JESSICA CARTER
"I’ve struggled with chronic gastritis for years. After trying the ‘Reduce, Repair, Rebuild’ bundle and switching to a clean diet, my pain has mostly stopped. It’s a game-changer, and I finally have hope!"
Feeling Better Than Ever!
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SOPHIA MARTINEZ
"These supplements have made my symptoms much milder than before. I’m noticing a real improvement!"
Balanced & Refreshed
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ETHAN COLLINS
"Just 12 hours after my first dose, I drank my morning coffee without pain or cramping. I’m excited to continue using AI-5 and GLR-6!"
Supports My Routine
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AMELIA FOSTER
"I had acid reflux and microbiome issues for months. GLR-6 helped a lot, and adding AI-5 and L-Glutamine made it even better. I’m still tapering off PPIs, but I see great progress!"
Great Product, Slight Taste
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Customer Reviews

Based on 7 reviews
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Catherine Gall
Ridiculous Energy

I have sooo much energy when I take one capsule of colostrum in the morning. I cannot take this every day. Maybe I’d get used to it, but I kind of don’t want to. It’s really great for those days that I want to ski really hard or I have to be super mom for the day. I’ll take it hiking and backpacking with me this summer. I haven’t noticed any effect other than the super energy. But if energy is what you’re looking for this is the stuff.

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Patricia Wright
Colostrum

I love this supplement. I’ve been taking Colostrum for several months and can feel a different in my overall wellbeing.

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Nora Ortiz

Colostrum

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Liz Coray
Colostrum

I love the colostrum and I use it morning on an empty stomach and then at night a few hours after eating my last food and a few hours before the GLR-6. It calms my whole digestive track.

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Stephanie Bailey
Taking longer than I thought

I’ve been taking 2 capsule daily since receiving it, no results thus far, so maybe it takes longer than I thought it would.

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