UTI Biome Shield® Compostable Refill Packet
Doctor Formulated. Patent-Pending. Refill your UTI Biome Shield® canister and stay protected.
Doctor Formulated. Patent-Pending. Refill your UTI Biome Shield® canister and stay protected.
- Prevents UTIs before they start
- Blocks bacteria introduced after intimacy
- Highest-purity PACs + D-mannose to block + flush bacteria ‡
- Defends and restores the microbiome with prebiotics
- Canister and Pill Stash not included
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This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Antibiotic Free
Doctor Formulated
Clinically Studied
30-Day Guarantee
UTI Biome Shield® is a multi-action, antibiotic-free defense designed to help stop recurrent UTIs before they start.
Powered by patent-pending PACphenol® + BioBlocD3®, our physician-developed formula supports beneficial bacteria, helps neutralize harmful bacteria introduced during intimacy, and addresses underlying causes of recurrence, without disrupting your microbiome. Learn more
Supplement Facts
UTI Biome Shield®
Serving Size: 1 Capsule
Servings Per Container: 60
| Ingredient | Amount Per Capsule | % DV |
|---|---|---|
| PACphenol™ | ||
| 38 mg soluble PAC (proanthocyanidins) from pure cranberry juice extract | 38 mg | * |
| Proanthocyanidins (A-type PACs), 250 mg per BL-DMAC verification | ||
| Delivering whole fruit polyphenol profile including flavonols, flavan-3-ols, phenolic acids, and anthocyanidins | ||
| BioBlocD3™ | ||
| d-Mannose | 500 mg | * |
| Vitamin D3 (vegan cholecalciferol) | 10 mcg (400 IU) | 50% |
| Zinc (zinc picolinate) | 2 mg | 18% |
* Daily value not established.
Other ingredients: purple carrot vegetable capsule (HPMC), microcrystalline cellulose, magnesium stearate, silicon dioxide.
Contains no GMOs, artificial preservatives, colors or sweeteners, no corn, dairy, soy, wheat, yeast, or gluten.
† 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.
What's inside

UTI Biome Shield® capsulesAntibiotic-Free
60 capsules in a compostable pouch. Pour them into your canister.
Supplement Facts
Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 60
PACphenol®
Proanthocyanidins (A-type PACs), 38 mg per BL-DMAC verification
Delivering whole fruit polyphenol profile including flavonols, flavan-3-ols, phenolic acids, and anthocyanidins
BioBlocD3®
* Daily value not established.
Other ingredients: purple carrot vegetable capsule (HPMC), microcrystalline cellulose, magnesium stearate, silicon dioxide.
Contains no GMOs, artificial preservatives, colors or sweeteners, no corn, dairy, soy, wheat, yeast, or gluten.
† 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.
How to Use
Every day
1 capsule
Take with water, any time of day, to keep your defenses up.
Before sex
2 to 3 more
Take with water up to 1 hour before. Drink a full glass after, then return to 1 daily.
We recommend 3-6 months of consistent use to see results.
SHIPPING, RETURNS + GUARANTEES
Shipping
- Orders over $99
- Free
- Orders under $99
- $6.99 flat rateContiguous US
- Alaska, Hawaii, Puerto Rico, Guam
- $60 flat rate
- Expedited (UPS)
- $19.992-day delivery to the 48 states and select parts of Alaska and Hawaii
- Ships
- Within 24 to 48 hours
- Delivery
- 3 to 7 days after dispatchWeather and carrier delays can affect timing
Guarantee
- 30-day happiness guarantee
- Supplement price refundedNot completely satisfied? Contact us within 30 days of delivery
Packaging
- Compostable & Recyclable
- Plastic-freeno secondary packaging
QUALITY, Purity & lab TESTING
- No gluten, dairy, eggs, soy or casein
- No GMOs
- No hormones or antibiotics
- No artificial additives
- No binders, or fillers
- No sugar, fats or oils
- No artificial preservatives
- No corn, wheat, and yeast
Verified by independent lab testing. Every active ingredient is present at the amount on the label, including 38 mg of A-type PACs measured by BL-DMAC.
- A-type PACs (BL-DMAC)
- 38 mg per capsule
Substances that trigger immune responses or sensitivities. Exposure can cause respiratory distress, digestive issues, or inflammation.
- Milk Allergen
- Not detected
- Peanut Allergen
- Not detected
- Gluten
- Not detected
- Egg Allergen
- Not detected
- Soy
- Not detected
- Casein
- Not detected
√ Screened for bacteria, yeast and mold.
- ISO
- third-party lab tested
Elements like lead and mercury occur in nature. We monitor levels closely to help promote product quality and transparency.
- ISO
- third-party lab tested
Every batch is made in the USA in FDA-registered, GMP-certified facilities and tested against NSF and USP third-party standards for purity, potency and safety.
Clinicians'
Choice
Verified by FrontrowMD
763 clinicians, including OB/GYNs shared this with their patients without compensation
Free shipping on US orders $60+

UTI Biome Shield® Compostable Refill Packet
What's inside
Five clinically studied ingredients, precisely dosed.
One capsule daily. Two more before sex.
Cranberry PACs
Help prevent UTI-causing bacteria from attaching to urinary tract walls.
D-Mannose
Targets E. coli adhesion, supporting the body's natural urinary flushing process.
Polyphenols & Zinc
Studied for their ability to interfere with bacterial communication and biofilm formation.
Vitamin D3
Support epithelial barrier integrity, tissue maintenance, and natural immune defenses.
Prebiotics
Help support a healthier microbial environment, with emerging research on gut microbiome balance.
WHAT THE DOCTORS ARE SAYING
Doctor Formulated. Doctor Recommended.
"Only bioavailable PACs prevent UTIs; Good Kitty is setting a new standard in UTI prevention."
"UTI Biome Shield® is the most advanced UTI prevention solution I've encountered in clinical practice."
"UTI Biome Shield® is an easy prevention solution for our patients."
how it works
Stop a UTI before it starts.
UTI Biome Shield® is a targeted blend of clinically studied ingredients that block, flush and rebalance, addressing UTIs at the source.
Block Bad Bacteria
38mg of 100% soluble cranberry PACs bind to P-type and Type 1 fimbriae.
Instant Flush
D-mannose is excreted in as little as 30 minutes and flushes bacteria for rapid clearance.
Bladder Defense System
Prebiotic and immune support trio breaks down biofilm, strengthens bladder tissue, calms inflammation and feeds beneficial bacteria.
REAL RESULTS
From women who'd tried everything else
UTI Biome Shield® verified reviews
read all reviewsI can’t stop taking them!
I stopped taking them and my kidneys started to hurt. I thought oh no, not again! I take one a day and feel better again.
Fantastic So Far!
I’m only about a month in but I was getting chronic post coital UTIs for about a year. UTI free for just over a month so we will keep going!
Recurrent UTI SAVIOR
I am SO grateful this product exists! I will be recommending to anyone with the same problem.
When to Take It
Timing and dosing matter
Simple daily support, with an extra dose before intimacy.
WHY GOOD KITTY
Recurrent UTIs need more than a one-step solution.
Most UTI supplements target a single mechanism. UTI Biome Shield® takes a multi-pathway approach to recurrent UTI prevention, supporting bacterial defense, biofilm disruption, and urinary tract health.
| What it does | OUR FORMULA UTI Biome Shield® | TYPICAL APPROACH Others |
|---|---|---|
| Anti-adhesion |
38mg cranberry PACsDMAC-verified, soluble. Helps keep E. coli from attaching
|
Low-PAC cranberryWhole-fruit powder with little anti-adhesion activity
|
| Flushing bacteria |
500mg D-mannoseBinds bacteria so they leave with urination
|
D-mannose aloneBinds bacteria, but nothing else working alongside it
|
| Biofilm disruption |
PolyphenolsHelp break up biofilms where bacteria hide
|
Rarely includedInconsistent or incomplete activity
|
| Microbiome balance |
PrebioticsFeed good bacteria and crowd out UTI-causing strains
|
Isolated extractsLittle or no microbiome support
|
| Bladder wall support |
Vitamin D3 + ZincSupports the bladder lining
|
NoneNo support for the bladder wall
|
| Dosing |
1 capsule daily, 2 before sexBuilt for daily prevention and pre-intimacy use
|
2 to 4 pills or scoopsHigher volume, inconsistent dosing
|
Most UTI supplements address one step. UTI Biome Shield® covers the full UTI cycle.
Here's what it would actually cost to build your own UTI Biome Shield®
We did the math. If you tried to source the exact patented ingredients Good Kitty uses, at the same clinical doses.
Here's what it would actually cost to build your own UTI Biome Shield®
We did the math. If you tried to source the exact patented ingredients Good Kitty uses, at the same clinical doses.
You'd be taking 10+ capsules a day
Clinical doses of cranberry PAC, d-mannose, D3, zinc, and polyphenols add up to a fistful of pills across multiple bottles. Biome Shield delivers all five in one capsule a day.
Clinical-grade ingredients are hard to source
DMAC-verified cranberry extract, pharmaceutical-grade d-mannose, and lichen-derived D3 aren't on your local shelf. Biome Shield uses the exact versions studied in the research.
Unpatented, untested combinations are less effective
A stack of loose supplements isn't the same as a physician-formulated protocol. Our patent-pending PACphenol® and BioBlocD3® complexes are built to work together.
the hard way
Cost to source 5 clinical actives separately
- 10+ capsules daily across 5 bottles
- 5 reorders, 5 shipping fees
All 5 actives, one daily protocol
- One Capsule. Doctor Formulated.
- Subscribe & Save 15% + Free Shipping
Continuous Protection
Your monthly routine, simplified.
- 1 capsule daily + 2 additional before sex
- Flexible delivery (1, 2, 3 months)
- Pause or cancel anytime
- No guesswork, no reordering stress
I used to get UTIs chronically and since starting this supplement I haven’t had one! The pill jar and travel case are so cute and convenient too a great touch .
Compostable Refill Packets
UTI Biome Shield® FAQs
UTI Biome Shield® is designed for anyone who experiences recurrent UTIs or wants to proactively support their urinary tract health. Take one capsule a day with water. On days you have sex, take two more capsules 30 to 60 minutes before, then drink a glass of water and pee afterward.
To maintain a healthy urinary tract: Take 1 capsule daily with water about the same time every day. For known triggers (such as travel, stress, lack of hydration, or inability to visit the bathroom ) or if you have early warning signs, take 2 capsules daily as needed, then return to one daily.
UTIs from sex: Because sex often results in bacteria in the urethra, take 2 additional capsules of UTI Biome Shield® 30-60 minutes before sex.
Remember: UTI Biome Shield® won’t treat or cure a UTI, but it can help maintain a healthy urinary tract to avoid future UTIs. If your doctor confirms an active UTI, take UTI Biome Shield® daily with your antibiotic to help your body flush out the bacteria.
One UTI Biome Shield® refill packet contains 60 capsules. This could last you anywhere between 30-60 days, depending on how often you're getting lucky.
If you currently have a UTI, please consult with your healthcare provider for appropriate treatment. UTI Biome Shield® is designed for prevention and maintenance.
If you have a confirmed urinary tract infection, it will likely require antibiotic treatment. You can take UTI Biome Shield® with your antibiotic as extra support against UTI-causing bacteria until the infection clears, and then continue taking UTI Biome Shield® once daily to maintain a healthy urinary tract. We recommend taking UTI Biome Shield® two hours before or after your antibiotic dosing.
Please note: Taking antibiotics every day may not be the best plan for UTI prevention. Harmful bacteria become resistant to antibiotics, and they also have many unwanted side effects—like stomach upset, allergic reactions, or yeast infections.
Yes, UTI Biome Shield® can be taken alongside antibiotics. In fact, it may help support your microbiome during and after antibiotic treatment.
No, UTI Biome Shield® is a dietary supplement and does not require a prescription.
While UTI Biome Shield® significantly reduces the risk of UTIs, it's not a guarantee. If you do get a UTI, consult your healthcare provider.
UTI Biome Shield® is a doctor-formulated, patent-pending, urinary health supplement with clinically proven 38 mg PAC, sourced only from pure cranberry juice extract; not skins or stems like most other cranberry supplements. 100% soluble, medical-grade PAC delivers maximum bacteria-blocking power and the highest PAC concentration available (30% vs. just 1%–18% in others). It also contains additional clinically-studied ingredients that work through multiple mechanisms, not just the single pathway that cranberry targets.
Most people begin to notice benefits within 2-4 weeks of consistent daily use.
We recommend 3-6 months of consistent use to see results.
UTI Biome Shield® is generally well-tolerated. Some people may experience mild digestive changes as their microbiome adjusts.
During menopause, lower estrogen levels can thin the urinary tract lining and alter vaginal pH, making it easier for UTI-causing bacteria to grow and stick, increasing your risk for infection. While vaginal estrogen is a first-line therapy for recurrent UTIs caused by hormonal shifts, UTI Biome Shield® is a great clinically proven addition to help maintain good postmenopausal urinary health.
While UTI Biome Shield® is designed to support urinary tract health and is not a treatment for IC, if you are getting UTIs as a result of IC, then UTI Biome Shield® can help. UTI Biome Shield® has about the same acidity as a cup of coffee or cola. If that amount would bother you, you can take UTI Biome Shield® along with an acid reducer, such as an effective and inexpensive product called Prelief. However, please be sure to talk to your doctor for proper IC treatment.
Yes! You can safely take UTI supplements like UTI Biome Shield® with probiotics for added urinary tract support. Many healthcare professionals recommend pairing UTI Biome Shield® with a good probiotic that supports the gut, urinary tract, and vaginal microbiomes—a key tool in maintaining overall pelvic health.











