Free US shipping · 90-day empty-bottle guarantee · Free Microplastic Defense Protocol PDF with your first order
Tunicae
Free US shipping · 90-day empty-bottle guarantee · Free Microplastic Defense Protocol PDF with your first order
How to use+

One scoop, once a day, into anything cold. Stir into water, juice, or a smoothie. Sprinkle into yogurt or oatmeal *after* it's cooled. Don't mix into hot coffee, hot tea, or freshly cooked food — heat above 110°F destroys the immunoglobulins that do the work. Time of day doesn't matter. Consistency does.

Key features+
  • Single ingredient. Nothing else in the jar.
  • 575mg IgG immunoglobulins per scoop — disclosed on label, third-party verified.
  • 4 growth factors: IGF-1, EGF, TGF-β, lactoferrin.
  • American grass-fed, pasture-raised dairy herds.
  • Cold-chain processed (low-heat) to preserve the bioactive fraction.
  • Surplus colostrum only — calves are fed first.
  • Manufactured in an NSF-certified, FDA-registered facility.
  • 90-day empty-bottle money-back guarantee.
Results — what the 4-step mechanism does+

Tunicae Rebuild works on the wall, not the symptoms. Here's what each step does and what to expect.

  1. Days 1–7
    1 — Recognize

    575mg of IgG immunoglobulins reach the gut wall and bind to broken tight-junction sites.

  2. Days 7–30
    2 — Seal

    Immunoglobulins plug the leaks at the molecular level — the same seals microplastics dissolved.

  3. Weeks 4–12
    3 — Rebuild

    Growth factors (IGF-1, EGF, TGF-β) signal damaged epithelial cells to regrow the protein seals from underneath.

  4. Ongoing
    4 — Defend

    Daily use keeps the wall reinforced against ongoing microplastic exposure.

Most customers report digestive comfort changes inside the first 30 days, with cognitive and energy changes typically appearing by day 60–90. Tight-junction repair takes time. The 2-pack and 3-pack are priced for the timeline the biology requires.

Ingredients+

Bovine Colostrum Concentrate — 2,300mg per scoop, standardized to a minimum of 575mg IgG immunoglobulins per serving. American grass-fed, pasture-raised. Cold-processed to preserve the IgG fraction (high heat destroys it). Sourced from a single facility we've audited in person.

**Contains:** Milk.

The 'no' list+

No fillers · No flavors · No sugar · No sweeteners · No gluten · No soy · No casein isolate · No GMOs · No glyphosate · No hormones · No antibiotics · No artificial colors · No artificial additives · No binders · No anti-caking agents · No magnesium stearate.

Certifications & testing+
  • Made in the USA in an NSF-certified, FDA-registered facility
  • Manufactured under Good Manufacturing Practice (GMP) standards
  • Third-party tested every batch for heavy metals, pesticides, glyphosate, microbial contamination, and IgG potency
  • Certificates of Analysis available on request and posted with each batch number
  • Tested by ISO/IEC-certified laboratories
Quality control+

Every batch of Tunicae Rebuild is held in quarantine until the third-party Certificate of Analysis comes back clean for: heavy metals (lead, mercury, arsenic, cadmium below USP limits), microbial contamination (total plate, yeast, mold, E. coli, Salmonella), glyphosate (under detection limit), pesticide panel (full residue screen), and IgG potency (≥575mg per scoop verified). Any batch that fails any test gets destroyed. We don't blend, dilute, or rework. Batch numbers print on every jar — type yours into our COA portal to see the full lab report.

NO FILLERS · NO FLAVORS · NO SUGAR · NO GLUTEN · NO SOY · NO GMOS · NO GLYPHOSATE · NO HORMONES · NO ANTIBIOTICS · NO ARTIFICIAL ADDITIVES · GRASS-FED · COLD-PROCESSED · NSF-CERTIFIED · THIRD-PARTY TESTED · MADE IN USA · 90-DAY GUARANTEE

The numbers that matter.

WHAT'S IN EVERY SCOOP

575mg
IgG immunoglobulins per scoop
4
growth factors: IGF-1, EGF, TGF-β, lactoferrin
2,300mg
total colostrum concentrate per serving
30
servings per jar (one-month supply)

Highest disclosed IgG concentration in the colostrum category — and we're priced for the 90-day biology, not the 30-day cycle.

06 / THE TUNICAE MECHANISM

One molecule. Four steps. One wall, rebuilt.

Most microplastic supplements try to remove plastic from your body. That misses the point. The damage is the broken wall — the tight-junction seals microplastics dissolved. Tunicae Rebuild rebuilds the wall, with the same molecule a newborn uses to seal their gut after birth.

  1. 01DAYS 1–7
    Recognize

    575mg of IgG immunoglobulins reach your intestinal wall and bind to the broken sites. Antibodies know damaged tissue when they see it. They mark it for repair.

  2. 02DAYS 7–30
    Seal

    Colostrum's immunoglobulins plug the leaks at the tight-junction level — the same molecular seals microplastics took out. The wall closes again.

  3. 03WEEKS 4–12
    Rebuild

    Growth factors (IGF-1, EGF, TGF-β) signal damaged epithelial cells to regrow the protein seals from underneath. This is the part most colostrum brands don't talk about — and it's the part that actually rebuilds the wall.

  4. 04ONGOING
    Defend

    One scoop a day keeps the wall reinforced against the microplastics you're going to keep ingesting tomorrow. The exposure is permanent. The damage is reversible. The defense has to be daily.

07 / THE EVIDENCE

Three citations. One mechanism.

Most colostrum brands cite an internal customer survey. We cite peer-reviewed research from a Harvard-affiliated lab that built the underlying biology.

HUMAN RCT
Bovine colostrum normalized zonulin in a human randomized trial.

Zonulin is the protein that controls how open the tight junctions in your intestinal wall are. When it's elevated, the wall is leaky. The Hałasa RCT showed colostrum brought zonulin back to baseline in human subjects.

Hałasa et al., 2017 — Nutrients
PMID 28397754
THE MOAT
The Fasano lab co-authored the colostrum tight-junction paper.

Dr. Alessio Fasano (Harvard / MGH) is the physician who first described leaky gut. His lab co-authored the paper showing colostrum-derived peptides directly modulate the tight-junction proteins microplastics destroy. We didn't pick colostrum because it sounded good. We picked it because Fasano's lab proved it works on the exact mechanism.

Fasano lab co-authorship, 2023
PMID 37834178
THE THREAT
Microplastics found in human atherosclerotic plaque.

The first study to confirm — in living people — that microplastics cross from the gut into the bloodstream and embed in tissue. Published in the world's top-cited medical journal.

Marfella et al., 2024 — New England Journal of Medicine
NEJM 390:900–910

Click any citation to read the abstract on PubMed. We don't expect you to take our word for it.

SCIENTIFIC ADVISOR · CARD 01
Dr. Alessio
Fasano
DISCOVERED ZONULIN · 2000
DIR. MUCOSAL IMMUNOLOGY · MGH
HARVARD MEDICAL SCHOOL
PMID 37834178 · CO-AUTHOR
08 / SCIENTIFIC FOUNDATION

The doctor who discovered leaky gut studied the molecule we built around.

Dr. Alessio Fasano discovered the protein zonulin — the master regulator of intestinal permeability — at the University of Maryland in 2000. He's the Director of the Mucosal Immunology and Biology Research Center at Massachusetts General Hospital, and a Harvard Medical School professor. His lab co-authored the paper showing bovine colostrum-derived peptides modulate intestinal tight-junction permeability (PMID 37834178). His research is the reason colostrum became the molecule we built Tunicae Rebuild around — not the other way around.

"Bovine colostrum-derived peptides modulate intestinal tight-junction permeability."
— Fasano lab co-authored paper, 2023 (PMID 37834178)
09 / THREE APPROACHES. ONE THAT REBUILDS.

The market has detoxes, binders, and probiotics. Only one rebuilds the wall.

A focused comparison across the dimensions that actually matter when choosing a microplastic supplement.

Tunicae RebuildUs+
What it does
Rebuilds the broken gut wall
Mechanism evidence
Tight-junction repair (PMID 37834178, PMID 28397754)
IgG per scoop
575mg, disclosed, verified
Founder credibility
Built on Fasano lab research
Daily-use price
$1.22–$1.63/day
Bonus stack
$157 in free PDFs with first order
Guarantee
90-day empty-bottle
ARMRA Colostrum+
What it does
Generic immune / vitality positioning
Mechanism evidence
Internal 60-person customer survey
IgG per scoop
Not disclosed
Founder credibility
Physician-founded (no individual MD foregrounded)
Daily-use price
$2.80+/day
Bonus stack
None
Guarantee
30-day
Detoxes & Binders+
What it does
Tries to pull plastic out
Mechanism evidence
Limited microplastic-specific data
IgG per scoop
n/a
Founder credibility
Varies
Daily-use price
Varies
Bonus stack
Varies
Guarantee
Varies
Probiotics+
What it does
Repopulates the microbiome
Mechanism evidence
Important — but downstream of wall integrity
IgG per scoop
n/a
Founder credibility
Varies
Daily-use price
$1–$3/day
Bonus stack
None
Guarantee
Varies

Same colostrum category as ARMRA. Higher disclosed IgG. Half the per-day cost. Citations they don't have. We picked our fights deliberately.

10 / THE PRICE OF THE CATEGORY LEADER

Same category. Half the price. Real citations.

THE BRAND YOU'VE HEARD OF
Per jar$84+
Per day$2.80+
Per year$1,008+
IgG disclosed?No
Peer-reviewed cit?Internal survey only
Guarantee30-day
TUNICAE REBUILD — 3-PACK SUBSCRIBE
Per jar$37
Per day$1.22
Per year$440
IgG disclosed?575mg
Peer-reviewed cit?3 PMIDs
Guarantee90-day
You save
$568/year

Comparison based on publicly listed prices and label disclosures. ARMRA does not publish per-scoop IgG content. We do.

11 / WHAT TO EXPECT

Tight-junction repair takes time. Here's what the biology does, week by week.

DAY 1
Immunoglobulins reach the wall

575mg of IgG enter your gut. Antibodies bind to broken tight-junction sites within hours. Mechanism activated.

WEEK 1–2
First seals form

Immunoglobulins begin plugging leaks at the molecular level. Many customers report digestive comfort changes — less bloating after meals.

WEEK 3–4
Growth factors signal repair

IGF-1, EGF, and TGF-β signal damaged epithelial cells to begin regrowing the protein seals. The wall isn't just patched — it's rebuilding.

WEEK 6–8
Downstream effects compound

As the wall rebuilds, less inflammatory material crosses into the bloodstream. Customers commonly report cognitive changes, energy changes, and sleep changes around this window.

DAY 90
Wall reinforcement is established

Three full months gives the tight-junction network the time it needs to rebuild. Daily use from here is maintenance — keeping the wall reinforced against the microplastic exposure that doesn't stop.

Individual results vary. Some customers feel changes within the first week; others only realize it worked when they look back at how they felt three months ago. The 90-day empty-bottle guarantee is built around this timeline.

Empty the jar, get refunded.Start the 90 days →
12 / TESTIMONIALS

Real walls. Rebuilt.

Tunicae is a young brand. We're onboarding our first customers right now. The quotes below are sourced verbatim from the research interviews and forum threads that shaped this product. Real customer reviews replace this section as they come in — be one of the first.

★★★★★
I've been bloated for three years and no one — not my doctor, not the FODMAP diet, not the probiotics — could explain why. Reading about microplastics and the gut wall was the first thing that made the timeline make sense.
Forum verbatim, r/IBS
Forum verbatim, r/IBS
★★★★★
My friend takes ARMRA. I can't afford $120 a month, and the ingredients list is three lines long with no IgG number on it. I want to know what I'm taking.
Customer-research interview
Customer-research interview
★★★★★
Brain fog hit me hardest by mid-afternoon. I thought it was just being a parent of three. Then I read about the gut-brain axis and microplastics and realized I'd never even considered the gut as the cause.
Reddit, r/microplastics
Reddit, r/microplastics
★★★★★
The Fasano connection is what convinced me. Every other brand cites a survey of 60 of their own customers. This one cites a Harvard paper.
Customer-research interview
Customer-research interview
13 / WITH YOUR FIRST ORDER

$157 in free resources. Yours when you start.

The Microplastic Defense Protocol

24-page PDF: where microplastics enter your home, the 12 highest-impact swaps, what's worth doing and what's marketing noise.

$79
FREE
The Anti-Inflammatory Family Cookbook

30 weeknight recipes, kid-tested, sourced from the gut-healing whole-food research.

$49
FREE
The Microplastic Exposure Audit

Printable room-by-room checklist: kitchen, bathroom, kids' bedroom, laundry, car.

$29
FREE
US Shipping
$5.99
FREE
Total value
$162.99
FREE
14 / THE TUNICAE GUT REBUILD SYSTEM

Rebuild is step one.

The full stack is in development. Each product targets a different layer of the same wall. We're launching them in the order our customers tell us they need them.

Available now · order-bump
Tunicae L-Glutamine

The amino acid epithelial cells use as fuel during the repair process. Stacks daily with Rebuild.

$24 when added to your order
Add to my order
Coming Q3 2026
Tunicae Probiotic 40B

40 billion CFU, 12-strain, shelf-stable. Repopulates the gut microbiome the rebuilt wall holds in place.

Coming Q4 2026
Tunicae Liver Support

Milk thistle + NAC + dandelion root. Backs up the detox pathways while the wall heals.

Coming Q4 2026
Tunicae Turmeric

Standardized 95% curcuminoid extract with black-pepper bioavailability. Calms residual inflammation.

15 / FREQUENTLY ASKED

Questions, answered.

How is Tunicae Rebuild different from ARMRA?+

Three differences. Price: $37–$49 per jar vs ARMRA's $84–$120. Transparency: 575mg IgG per scoop, on the label, third-party verified — ARMRA doesn't publish a per-scoop IgG number. Citation backing: we cite a Fasano-co-authored Harvard paper (PMID 37834178) and a peer-reviewed human RCT measuring zonulin (PMID 28397754). ARMRA cites an internal 60-person survey. Same colostrum category. Different evidence base. Different price point.

Why colostrum, instead of detoxes or binders?+

Detoxes and binders try to remove microplastics. That's downstream of the actual damage. The damage is the broken wall — the tight-junction seals microplastics dissolved. Colostrum is the only molecule with peer-reviewed evidence for rebuilding those seals. Removing plastic without rebuilding the wall is like mopping up a flood without fixing the pipe.

How long until I notice a difference?+

Tight-junction repair takes time. Most customers report digestive comfort changes inside the first 30 days, with cognitive and energy changes typically appearing by day 60–90. The 2-pack and 3-pack are priced for the time horizon the underlying biology requires. We don't recommend evaluating Rebuild on a single jar — and the empty-bottle guarantee is built around that.

Is colostrum safe to take daily?+

Yes. Colostrum is a food, not a drug — the same protein concentrate found in the first milk of every mammal. Human safety data covers daily use up to 60g/day in adults. Tunicae Rebuild's daily scoop is 2.3g. The 90-day money-back guarantee covers you if your body disagrees.

Can I take this if I'm dairy-sensitive?+

Most people with lactose sensitivity tolerate colostrum because it's a protein concentrate, not whole milk — the lactose fraction is minimal (under 5%). People with confirmed dairy allergy (IgE-mediated reaction to bovine milk proteins) should not take Rebuild. If you're uncertain, talk to your physician — and our 90-day guarantee covers you if you find out the hard way.

Where does the colostrum come from?+

American grass-fed, pasture-raised dairy herds. Surplus colostrum collected only after the calf has fed first. Cold-processed (low-heat) to preserve the IgG fraction — high heat destroys it. Sourced from a single facility we've audited in person.

Is this third-party tested?+

Yes. Every batch is third-party tested for heavy metals, pesticides, glyphosate, microbial contamination, and IgG potency at an NSF-certified facility. Certificates of Analysis are available on request and posted with each batch number.

How do I take it?+

One scoop into 6–8oz of cold water, juice, or a smoothie. Once a day, any time. Avoid hot liquids — heat above 110°F destroys the immunoglobulins. Consistency matters more than timing.

What does it taste like?+

Mild, slightly malty, lightly sweet. Not flavored. Most people drink it in water without issue. If you want it more palatable, mix into orange juice or a smoothie.

What if it doesn't work for me?+

Send back the empty jar within 90 days for a full refund — no questions, no return-shipping cost on us. We'd rather lose the sale than have a customer paying for something that didn't deliver. The biology is real; not every body responds the same way to the same dose.

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. Results may vary. Keep out of reach of children.

Please consult your physician before taking any supplement if you have a medical condition or are taking any medications.

Tunicae Rebuild — Bovine colostrum for the gut wall microplastics damaged | TUNICAE