Gut
Colostrum
Bovine colostrum, standardized to 25% immunoglobulins.
- Supports a healthy immune system*
- Supports a normal inflammatory response*
- 125 mg immunoglobulins (IgG) per capsule*
How subscribing works
Full terms- Delivered every 2 months. Free shipping over $75.
- Skip or change the date from your account.
- Cancel online anytime.
- Save 20% on every delivery.
- Full Supplement Facts panel
- Formulated on published research
- Skip or cancel anytime
- Free shipping over $75
Why Colostrum exists
Sound familiar?
Eating less can change how digestion feels.
My digestion feels different now.
You're not imagining it. It's the most common change people report.
N Engl J Med 2021 · Read
Vegetables are the first thing I skip.
Less fiber on your plate means less for your gut.
Nutrients 2025 · Read
Nobody told me what to eat with this.
You're not alone. Four medical societies now say nutrition belongs in GLP-1 care.
Am J Clin Nutr 2025 · Read
Built by a family that's been through it. Read our story
Quotes describe common experiences. Studies aren't of DUO products. All research
Is this right for me?
Is Colostrum right for you?
An honest answer, so you can decide with confidence.
You'll probably like it if
- Your digestion feels different.You want simple daily support for your gut.
- Vegetables are the first to go.Smaller plates mean less fiber-rich food.
- You prefer one simple step.One daily capsule, not a cabinet of bottles.
Colostrum
from $49.60/2 mo · Gut + everyday support.*
Check with your provider first if
- You’re pregnant, nursing or planning to be.
- You take prescription medication, including for diabetes or blood pressure.
- You have a medical condition or an upcoming procedure.
- You’re allergic to dairy (colostrum is dairy-derived).
- You’re allergic to dairy.
Still not sure? Ask us a question
DUO products are dietary supplements, not medications.
What's inside
One ingredient. Bovine Colostrum Powder.
500 mg
IgG 25% · 1 capsule
Good to know
- • Contains: milk (colostrum).
- ✓ Non-GMO
- ✓ Lacto-vegetarian
How to take it
Simple enough to keep doing.
Daily
From the label
Take 1 capsule 1 to 3 times daily, preferably with meals, or as directed by a healthcare professional.
Habit
Keep it consistent
Same time each day makes it easy to remember.
If we can't explain why it's here, it doesn't belong here.
Our own internal standard. Not a third-party certification.
- 01Purposeful
- 02Evidence-led
- 03Transparent
- 04Tested
- 05Explainable
Questions
Questions we'd ask if we were you.
Take 1 capsule 1 to 3 times daily, preferably with meals, or as directed by a healthcare professional.
No. Every DUO product is sold on its own. The Complete Routine is for people who want all four areas covered at the best price.
Talk to your healthcare provider or pharmacist before starting any supplement if you take medication. Bring the full Supplement Facts with you; you can find them above.
No. DUO is an independent dietary supplement brand. It is not affiliated with, endorsed by, or connected to any pharmaceutical company or prescription medication.
Ready when you are
Add Colostrum to your DUO.
Bovine colostrum, standardized to 25% immunoglobulins.
Full Supplement Facts · Free shipping over $75 · Skip or cancel anytime
Want every area covered? See the Complete Routine
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk with your healthcare provider before starting any supplement, especially if you take medication.