4.8 (2,000+ cat parents)

Protect your cat from plaque build-up and pricey vet bills with Sepili Mouth

Title

Vet-Recommended Formula

No Kelp or Iodine

Fussy Eater Approved

Fights plaque & bad breath

Mixes Through Any Food (Wet, Dry, Raw)

Nearly Sold Out: Huge Demand Thanks to Our Limited-Time Sale!

Title

↻ Refills Ship Every 30 Days | ⊘ Pause or Cancel Anytime

90-Day Guarantee   /    Fast NZ-Wide Delivery

Try It Risk-Free for 90 Days

Love it or send it back within 90 days. Backed by our 90-Day Satisfaction Guarantee.

  • Authenticity Notice

    Sepili Mouth is sold exclusively through the Sepili Store. We haven't authorised any seller on Amazon, Trade Me or any other marketplace, and we can't vouch for products sold anywhere else.

Feeding & Dosage Guide

Product Description

Sepili Mouth is a daily dental powder for cats that you simply sprinkle over their food — far easier to keep up than brushing, dental chews or any other fiddly routine. Used with your cat's regular feeds, it helps reduce plaque build-up, freshen bad breath and support a cleaner, healthier mouth over time. If you're worried about gingivitis, big vet bills for dental work, or the stress of putting your cat under anaesthetic, Sepili Mouth is a simple, low-stress way to get ahead of mouth problems before they start.

Delivery Policy

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Processing Time:
Orders are processed within 1–3 working days.


Delivery Times:


New Zealand & Australia: 7–10 working days


UK & Europe: 7–10 working days


US & Canada: 7–9 working days


Rest of the world: 7–10 working days


Delivery Costs:
Delivery costs are worked out at checkout based on your location and the shipping method you choose.


Order Tracking:
Once your order is on its way, we'll email you a tracking number.


Customs and Duties:
Overseas orders may attract customs duties and taxes, which are the customer's responsibility.


Delivery times can vary with high demand, customs processing or other things outside our control. Thanks for your patience.

90-Day Money-Back Guarantee

Here is the text extracted from the image:


Try it risk-free for 90 days.


We're so confident Sepili Mouth will help support cleaner teeth, fresher breath and an easier daily dental routine that we back it with a 90-day, no-questions-asked money-back guarantee.


If you don't notice a clear difference in your cat's mouth — less build-up, better breath, or simply a routine you can actually stick to — send it back for a full refund.


No hoops, no hassle. Just a straight-up promise: looking after your cat's health should feel risk-free.

Here's what cat parents are saying...

  • Debbie Wilson

    3d ago

My biggest worry was whether my cat would actually eat it. She's unbelievably fussy and has turned her nose up at medications, supplements, dental treats and even new food bowls for no real reason. So I fully expected this to be another waste of money. I started with a tiny bit mixed through her wet food just to test it, and she ate the lot without even pausing. That alone shocked me. I worked up to the full scoop bit by bit, and she never seemed to notice it was there. After about a month her breath was noticeably better and the build-up on her teeth didn't look as dark to me. For anyone with a difficult cat, that was the real win here. I'd pretty much given up on doing anything consistently for her teeth, and this is the first thing that's actually felt easy to keep up with.

  • Sandra Nicholls

    2 weeks ago

I was pretty sceptical at first because, honestly, it sounded too simple. A scoop of powder over his dinner didn’t seem like it could make any real difference when the vet charges several hundred dollars for a dental and makes it sound so serious. I wasn’t expecting miracles, but I thought I’d give it a month before making up my mind. The thing that surprised me most was his breath. That was the first change I noticed, and it happened faster than I expected. Then over the next few weeks I could see the darker buildup along the gumline wasn’t getting worse the way it had been. I’m not saying it replaces what a vet does, but for day-to-day upkeep it’s been far more useful than I ever thought it would be. It made me realise I’d been ignoring the problem mainly because I didn’t think there was a realistic option at home.

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  • Hayley Thompson

    5 days ago

I nearly gave this a miss because my cat's only four, eats normally and still seems completely fine. I honestly thought dental disease was something that only turned up in much older cats, not one that still tears around the house like a kitten. What changed my mind was reading that cats can have serious buildup and sore gums long before they show any obvious pain. So I had a proper look at his back teeth and spotted a yellowish line along the gumline that I'd never really paid any attention to. I started putting the powder in his wet food every morning, and within a few weeks his breath lost that sour smell I'd just got used to. The buildup on the back teeth looks lighter now too. My biggest regret is assuming “he seems fine” meant nothing was going on.

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Limited Time Offer

How Does Sepili Mouth Work?

One serving sprinkled over your cat’s food. Wet or Dry. That’s it. From there, Sepili

Mouth works through your cat’s saliva 24/7, coating the mouth, fighting plaque 

build-up and helping keep their teeth and gums healthy.

  • DAY 7

    Better Breath

  • Zinc neutralises the sulphur compounds behind bad breath.
  • Prebiotics and probiotics work together to crowd out odour-causing bacteria.
  • First sign: fresher breath when your cat gets up close.
  • DAY 45

    Visible Changes

  • Zeolite has been breaking up the sticky biofilm that plaque needs to form.
  • Cranberry has been making it harder for plaque-causing bacteria to stick, day after day.
  • The result: less build-up and cleaner-looking teeth.
  • DAY 90

    Full Impact

  • All 9 ingredients have had time to work together, day after day.
  • Plaque has had fewer chances to stick, build up and harden.
  • Cleaner teeth. Fresher breath. Healthier-looking gums.

Plaque builds up over time. Beating it comes down to consistency. Use it every day.

9 Active Ingredients. Every One Has A Job.

Clinoptilolite (Zeolite)

Breaks up the sticky biofilm plaque needs to form, so buildup finds it much harder to cling to your teeth.

Probiotic Blend – 6 Strains

Good bacteria that push back against the plaque-causing ones, so the bad guys never get the upper hand.

Cranberry Powder

Makes it harder for plaque-causing bacteria to stick to teeth. Stops buildup where it starts.

Dandelion Root

A root packed with natural antioxidants. Extra defence against everyday cellular stress.

FOS / Prebiotic Fibre

Fuel for the good bacteria. Keeps your probiotic blend fed and ready to work.

Yucca Schidigera

Slows the enzymes that break down gum tissue. Keeps the foundation around your teeth solid.

Zinc Ascorbate

Plaque bacteria can't stand zinc. It goes after the bacteria and neutralises the sulphur compounds behind bad breath.

Vitamin C

A building block for collagen — what strong, resilient gums are made of.

Taurine 

Works alongside zinc to keep gum tissue strong. An essential amino acid every cat needs.

Third-Party Tested  .  No Kelp or Iodine  .  NSF GMP Verified Facility  .  Formulated For Cats Only

Why Choose Sepili Mouth

Everything your cat needs. None of the stuff they don’t.

Sepili
Mouth
Typical
Powders
No Kelp or Iodine
✕
✓
Made Just for Cats
✓
✕
Fussy-Cat Friendly
✓
✕
Independently Lab Tested
✓
✕

Frequently Asked Questions

Will my fussy cat actually eat it?

Most cats don't even notice it's there. Just sprinkle one small scoop over their wet food and stir it through. Thousands of Kiwi cat owners — including plenty with seriously fussy cats — say theirs tucks in without a second thought.

How soon will I notice a difference?

Most owners notice fresher breath within the first fortnight. Visible plaque reduction takes longer — usually 8 to 12 weeks of consistent daily use. It's not overnight. But it's real, and it builds every single day.

My cat already has plaque build-up — is it too late?

Sepili Mouth is made for everyday upkeep at any age and helps slow new plaque building up as part of your cat's routine. If your cat already has heavy tartar, red or bleeding gums, drooling, or signs of mouth pain, book in with your vet. Existing dental disease needs professional care — Sepili Mouth isn't a treatment.

How do I give it to my cat?

One small scoop over their food, once a day. That's it. Stir it through wet food for the best results. They eat. It works. Sorted.

What if it doesn't work for my cat?

Give it a go for 90 days, completely risk-free. If you don't see a difference — fresher breath, cleaner teeth, a happier cat — we'll refund you in full. No hoops. No hassle. No questions asked. Nothing to lose, and a healthier cat to gain.

Is Sepili Mouth safe? Any side effects I should know about?

Sepili Mouth is made for daily use and most cats take to it without any trouble. Just follow the directions on the label. If your cat has a health condition, is on medication, or is pregnant or nursing, have a word with your vet first. Stop using it and contact your vet if you notice any reaction.

Sepili Mouth For Cats

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