PortRx
Join the Waitlist
BUTTYR™ bottle
BUTTYR bottle, front BUTTYR supplement facts panel BUTTYR capsules BUTTYR lifestyle
★★★★★ Founding members & counting
Port Rx · Dietary Supplement

BUTTYR™

Targeted Gut + Microbiome Restoration

Your daily gut reset in three clean capsules — postbiotics, probiotics, prebiotics and gut-repair nutrients, with nothing to hide on the label.

Postbiotic Probiotic Prebiotic No Added Sugar
Pre-Launch · Founding Offer
$— Founding-member pricing revealed to the waitlist first
Bottles
1
180 capsules · 60 servings each

Waitlist members get early access & the lowest price we'll ever offer.

Third-party tested No added sugar Made in the USA
Barrier Repair

Tributyrin · Glutamine · Zinc Carnosine

Microbiome

5B CFU probiotics + prebiotic fibers

Calm & Comfort

Quercetin · Marshmallow Root

Clean Format

3 capsules · no sludge · no sugar

Full Transparency

Supplement Facts,
in full.

No proprietary blends. Every active is listed with its dose, so you always know exactly what you're taking — and how much.

BUTTYR pairs a postbiotic core (Tributyrin) with barrier-repair nutrients, soothing botanicals, prebiotic fibers, and two of the most-studied probiotic strains.

Read about each ingredient →
Supplement Facts
Serving Size 3 Capsules
Servings Per Container 60
% Daily Value
Tributyrin (CoreBiome®)500 mg †
L-Glutamine1000 mg †
Zinc (as Zinc Carnosine)15 mg · 136%
Quercetin150 mg †
Beta-Glucan (1,3/1,6, yeast)200 mg †
Inulin300 mg †
Pectin300 mg †
Marshmallow Root Extract200 mg †
Probiotic Blend (L. plantarum 299v + B. longum BB536)5 Billion CFU †
† Daily Value (DV) not established.
Other Ingredients: Hypromellose (vegetable capsule), organic rice hull, rice flour.
A Simple Daily Ritual

How to take BUTTYR.

Three capsules, once a day

One serving is three capsules. Take them together — morning is easiest for most people to stay consistent.

With water, with or without food

No mixing, no shaker, no waiting. A glass of water is all you need — at home or on the go.

Stay consistent

Gut support builds over time. Take BUTTYR daily and give your barrier and microbiome 4–12 weeks to do their work.

Good Questions

Before you start.

BUTTYR is formulated for daily gut-barrier and microbiome support. If you're pregnant, nursing, taking medication, or managing a health condition, check with your healthcare provider first.
One bottle is 180 capsules — a 60-day (two-month) supply at three capsules per day. Subscribe & Save sends a fresh bottle before you run out.
No. The probiotic strains and actives are shelf-stable. Store in a cool, dry place away from direct sunlight.
Details ship with launch. Waitlist members are notified first, with founding-member pricing and our satisfaction guarantee. Questions? Email [email protected].