Balance, vitality, and wellness.

A daily oral probiotic designed to support fresh breath, healthy gums, and a balanced microbiome.

Shop Arbor
★★★★★ 4.8/5 from Australian customers · 🇦🇺 Australian Owned

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BLIS K12® & BLIS M18®

BLIS K12 bacterial strain

BLIS K12®

BLIS M18 bacterial strain

BLIS M18®

Your mouth is the gateway to your gut.

Every day, you swallow over 600 times. Arbor is formulated specifically for the oral environment, delivering beneficial bacteria where every digestive journey begins.

Arbor oral probiotic product
★★★★★

"I forgot to buy breath mints and didn't notice for a week."

I've been taking a gut probiotic for two years, eating clean, doing everything right. Within three weeks of starting Arbor, I realised I'd run out of breath mints and genuinely hadn't noticed. That's when I knew something had actually changed.

Sarah M.
Verified customer
★★★★★

"My hygienist asked what I'd changed."

After about six weeks, I went in for a clean and she said my gums looked so much healthier. I'd had bleeding gums for years. She thought I'd started a new dental routine. The only thing different was Arbor.

Emma T.
Verified customer
★★★★★

"The piece that was missing from my whole wellness stack."

I take Seed. I take AG1. I've spent years trying to fix my gut from every angle. I didn't realise I'd been starting in the wrong place. Since adding Arbor, everything else seems to work better.

Jess K.
Verified customer
★★★★★

"A different mouth by morning."

I was so desperate after trying every mouthwash, every prescription rinse, everything. Nothing lasted more than an hour. Now I wake up and my mouth just feels clean — like I brushed right before I slept.

Michelle R.
Verified customer
★★★★★

"My gut responded when my mouth did."

I bought this for morning breath. I wasn't expecting the gut benefit. But my bloating has reduced significantly and my digestion is noticeably more settled. I had no idea my mouth had anything to do with it.

Claire B.
Verified customer
How It Works

More than fresh breath.

Arbor is designed to support the oral microbiome with beneficial bacteria, helping maintain balance where every digestive journey begins.

Fresh Breath

Fresh Breath

Feel fresh in every conversation.

Healthy Gums

Healthy Gums

Support a healthier smile every day.

Daily Balance

Daily Balance

A simple ritual that fits your routine.

Morning Confidence

Morning Confidence

Wake up feeling your best.

Benefits

What you'll start to notice.

Cleaner tongue

Cleaner Tongue

Fresher breath

Fresher Breath

Healthier gums

Healthier Gums

Throat support

Throat Support

Balanced oral microbiome

Balanced Oral Microbiome

Mouth to gut support

Mouth → Gut Support

Get started from just $1.25 a day

Arbor Oral Probiotic
30-day supply, ships every 30 days
$49 $39
First Order Includes
Welcome card + usage guide
What to expect in the first 30 days
$9 Free
Total
$58 AU $39/mo
Save 20% with subscription
Start where your gut does →
30-day money-back guarantee Cancel anytime, no questions
Arbor oral probiotic

★★★★★ 4.8 / 5

Join thousands of Australians
who feel the difference.

Emma T.
Emma T.
Arbor customer · 6 weeks in

"My hygienist asked what I'd changed. I've had bleeding gums for years. Within six weeks they were completely settled."

Sarah M.
Sarah M.
Arbor customer · 1 month in

"I forgot to buy breath mints and genuinely didn't notice for a week. That's when I knew something had actually changed."

Jess K.
Jess K.
Arbor customer · Seed + AG1 user

"I've been taking Seed and AG1 for two years. Arbor is the piece that was missing. My stomach finally feels right."

Michelle R.
Michelle R.
Arbor customer · 2 months in

"A different mouth by morning. After years of prescription mouthwash doing nothing, this is the first thing that actually lasted."

Claire B.
Claire B.
Arbor customer · 3 months in

"I take one tablet every night. It costs me 90 seconds and my whole wellness routine now makes more sense."

The science behind where gut health begins.

600
times you swallow each day — every one sending bacteria from your mouth to your gut*
215K+
published studies on PubMed examining the oral microbiome. The science is established. The product category is new.*
700+
species of bacteria can live inside a healthy mouth. The goal was never a sterile mouth. It was a balanced one.

*Swallow frequency: Mayo Clinic. PubMed search: oral microbiome, 2025.

Frequently asked questions

What is Arbor, exactly?
Arbor is an oral probiotic — a chewable tablet taken nightly that repopulates your oral microbiome with strains that support fresh breath, gum health, and a cleaner bacterial pathway from your mouth to your gut. Every time you swallow, you send bacteria from your mouth to your gut. Arbor makes sure you're sending the right ones.
How is it different from a gut probiotic like Seed?
A gut probiotic is designed for the intestinal environment. The strains are chosen to survive the stomach and colonise the large intestine. Arbor is formulated specifically for the oral environment. The strains it contains are selected to survive and colonise in your mouth — which is where your gut actually begins. They are not the same strains, not the same formulation, and not designed for the same place. They work together, not instead of each other.
When will I notice a difference?
Most customers notice a difference in morning breath within 3–4 weeks. Gum health tends to improve earlier — typically within 1–2 weeks. For deeper gut benefits, allow 60–90 days of consistent nightly use. The benefits compound over time: customers who have been using Arbor for 6–12 months report outcomes they didn't expect from an oral probiotic.
How do I take it?
Chew or dissolve one tablet on your tongue before bed. Take it nightly. Avoid eating or drinking for 30 minutes after — the strains need time to colonise without being washed away. Most customers add it to the end of their evening routine, right before sleep.
Is Arbor made in Australia?
Yes. Arbor is manufactured in Australia to the highest quality and safety standards. Made with naturally sourced ingredients, no artificial colours or sweeteners, and no fillers.
What is your returns policy?
We offer a 30-day money-back guarantee. If you don't notice a difference in your first month, contact us and we'll refund your order in full — no questions asked. We're that confident in what Arbor does.