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For otherwise-healthy cats with morning foam

PureFelis Taurine

She's still throwing up yellow foam every morning. Nobody checked her bile.

4.7/5 1,400+ reviews
Marta and 20,000+ others purchased
  • Mixes into wet or dry food — most cats never notice
  • 250 mg pharmaceutical-grade taurine — zero filler
  • One scoop, one cat — no shared feeder needed
  • 30-day guarantee — refund without return
  • One-time purchase — no auto-renewal
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Add one scoop (250mg) of PureFelis to your cat's food once daily. Mix it in before serving.

It dissolves completely. No smell, no taste. Your cat won't notice it.

Works with wet food, raw food, broth, or dry kibble with added water.

For cats managing a diagnosed condition or on prescription medication, ask your vet before starting.

Store in a cool, dry place with the lid closed.

Your guarantee starts the day your order is delivered — not the day you placed it.

If you are not satisfied for any reason within 30 days of delivery, email us at support@purefelis.com and we will refund your full purchase price.

You do not need to return the product. You do not need to explain why. There are no conditions, no hoops, and no exclusions. One email is all it takes.

Refunds are processed within 2 business days of your request. Your bank may take an additional 3–5 business days to post the credit.

This guarantee covers every order, every tier, every customer. No exceptions.

A full month of mornings, guaranteed.
Your 30 days start the day the tub arrives — not the day you order. Dose every evening, log every morning. If the mornings don't change, tell us and we refund you. Keep the tub and the scoop.Your 30 days start the day it arrives. Dose every evening, log every morning. If the mornings don't change, tell us and we refund you. Keep the tub and the scoop.
PureFelis is sold only at purefelis.com.

This product sold out 13 times last year. We encourage you to take advantage of the limited sale and buy now.

PS: Not on Amazon. Not on Chewy. Not through any other retailer.

Why it's safe to try
Free shipping over $50 Made in the USA 250 mg per scoop
A tub of PureFelis lit against a dark background
The mechanism, in the order it happens

It was never acid. It was bile she couldn't bind.

1
It's bile, not acid

Bile is made in the liver, not the stomach. Acid reducers never reach it — which is why famotidine can help at first and then fade.

2
Unbound bile irritates

Some bile never gets bound to taurine. That unbound bile sits in her empty stomach overnight and irritates the lining. The empty stomach is the trigger. The unbound bile is the cause.

3
Why taurine runs low

Cats can't make enough on their own. High heat destroys taurine during cooking, so makers spray some back on afterward — enough to clear a decades-old minimum. And she spends taurine every day through the bile itself.

In 1987, UC Davis researchers published in Science that cats were going blind and dying of heart failure from taurine deficiency — in food that met the standards of the day. It's why every bag has taurine in it now.

4
Why her last taurine did nothing

Check its label — if maltodextrin or starch is listed, most of that scoop was never taurine. And it was dosed for general heart-and-eye maintenance, the only job the category was ever built for.

5
Cats have no backup

When taurine runs short, a dog switches to glycine. A cat can't — taurine is close to her only option. That's why a shortfall shows up as 4am foam instead of nothing at all.

What's inside, and what isn't

Taurine, and nothing else

Pure taurine powder, close up

One ingredient: the amino acid her bile chemistry needs. Nothing else in the tub.

✓100% taurine by weight
✓Nothing added to bulk out the tub

Zero maltodextrin

A leading competitor 17% taurine
PureFelis 100% taurine

Based on a leading US cat taurine powder's published label: 500 mg taurine per 3 g scoop.

Go check the tub of the taurine you already tried. If maltodextrin, rice flour, or starch is on the label, most of that scoop was never taurine.

✓No fillers in ours
✓What the scoop holds is what the cat gets

Dosed for bile, not for maintenance

A dose of PureFelis on a spoon

The category was built around general heart-and-eye maintenance. That's a different job, and a different amount.

✓Sized for what her bile actually needs
✓Not a sprinkle folded into a multivitamin

One scoop, one cat

One level scoop of PureFelis

Four seconds into her bowl. Nothing about your other cat's diet has to change.

✓One level scoop, once a day
✓Mixes into wet or dry, no taste change
A scoop of PureFelis powder being stirred into wet food

One scoop, stirred into the last meal of the day

The long stretch overnight is when the trouble starts, so the evening meal is the one to dose. Follow the amount printed on your tub label.

You've already done the work

Everything you've tried, and why the mornings didn't change

None of it was wrong. Most of it was aimed at timing or acid — not at what's actually in the bile.

THE VET VISIT
Tests came back clean, and you were told it's normal
"If it were real, my vet would have caught it."
Why it didn't work

That test checks her organs, and clean results are real good news — the scary stuff isn't there. But it doesn't measure whether her bile left the liver bound to taurine. It can't clear what it never checked.

And 'some cats just vomit' isn't settled either. In 2013, feline specialist Gary Norsworthy published 100 cases in JAVMA arguing that a cat vomiting more than twice a month isn't normal. Yours does it most mornings.

FAMOTIDINE / PEPCID
It helped for a few weeks, then stopped mattering
"Medication didn't fix the cause."
Why it didn't work

Pepcid lowers stomach acid. But this is bile, and bile comes from the liver — a stomach medicine never reaches it. That's why it helped at first and then faded.

THE BEDTIME SNACK
A small meal last thing at night
"My cat already eats before bed."
Why it didn't work

Feeding her late makes the empty stretch shorter, which is why it can help for a while. It doesn't change what the bile is made of — and her stomach empties out eventually every night.

THE 4AM AUTO-FEEDER
A timed feeder to break up the overnight gap
"I have a second cat on a different diet, I can't use one."
Why it didn't work

A shared feeder can't feed just one cat, so for a lot of two-cat homes it's not even an option. A scoop into her own bowl is.

What to expect

Taurine gets used up every day, so it's given every day. Give it a full month — and write down each morning, because memory blurs the bad ones.Taurine gets used up every day, so it's given every day.

Write down two things
Foam, yes or noWhat time
An illustration of taurine molecules binding to bile acids
Week 1

Nothing visible yet. Taurine is reaching her liver and starting to bind the bile she makes overnight. Keep giving her the scoop at dinner.

A tabby cat resting on a sunlit windowsill
Weeks 2–3

You may notice fewer mornings with foam. Six a week might become three.

A tabby cat being scratched under the chin, eyes closed
Week 4

Compare it to where you started. If nothing changed, your 30 days are still open — ask for your money back.

What 1,400+ cat owners are saying

Much better

Not finding yellow puke every morning now. Still happened once last week but way better then before.

HM
Hannah M.
Ohio
Collected by PureFelis
Finally

Been putting PureFelis in Maples food for about 3 weeks. Havent been woke up by her heaving at 5:45 for awhile now.

MR
Melissa R.
Florida
Collected by PureFelis
Rosie girl

I am happy with how she is doing. Keeping her food down alot better.

DS
Diane S.
Michigan
Collected by PureFelis
Hunger pukes

Thats what we called it. Milo didnt notice the powder and its only happened once since.

LP
Lauren P.
Texas
Collected by PureFelis
Seems to work

Tried the feeder and smaller meals first. Theo has only been sick one time this month.

AK
Amanda K.
Pennsylvania
Collected by PureFelis
Both cats eat it

Neither one cared about it being in their food. Jasper is doing alot better.

RT
Rachel T.
North Carolina
Collected by PureFelis

This isn't the right page for every cat

PureFelis is for a healthy cat who throws up foam early in the morning, before she's eaten. If any of these are true instead, close this page and call your vet — that needs a real check-up, not a supplement.

Lethargy
Hiding, flat, not herself between episodes.
Refusing food
Skipping meals, or losing weight over weeks.
Blood in the vomit
Red streaks or a coffee-ground look.
Many times a day
Or throwing up after meals, not just before them.

One more thing, and it costs us money to say it. In Gary Norsworthy's 2013 JAVMA series, the cats studied were ones already vomiting chronically — and most of them turned out to have something, with a thickened bowel showing on ultrasound. So if she's never had one, get the ultrasound before you buy anything from us. We mean that.

A cat sitting on a windowsill in early morning light
The part nobody said out loud

You weren't overreacting. You just never got an explanation.

A healthy cat, clean tests, and a symptom that keeps coming back every morning isn't a closed case. It's a question nobody answered.

Here's the answer. Here's what her body was missing. And here's 30 days to find out if that was it.

Your order, in full

One order, one charge. Your 30 days start the day the tub arrives.

A 3 Tub Order:
PureFelis Taurine × 3$59.90 $164.85
ShippingFREE
Total$59.90 $164.85
You save $104.95
30 days from deliveryRefund without return
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A tub of PureFelis Taurine beside its measuring scoop

Frequently asked questions

1 - Individual results vary. Nothing on this page is a promise of a specific outcome for a specific cat.

2 - Free shipping applies to orders over $50. Orders under $50 ship for $4.99.

3 - PureFelis is a taurine supplement for otherwise-healthy adult cats. It is not a drug and is not intended to diagnose, treat, cure, or prevent any disease. Persistent or worsening vomiting warrants a veterinary examination.

© 2026 PureFelis

The information on this site is not a substitute for professional veterinary advice. If your cat has, or you suspect your cat has, any medical condition, consult your veterinarian. Vomiting that is frequent, forceful, bloody, or accompanied by lethargy, appetite loss, or weight loss should be examined by a veterinarian rather than managed with a supplement.

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