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Continue shoppingCat-safe gut care
A gentle 21-day gut cleanse that targets the hidden parasite load a stool test can miss — made only with ingredients a cat's liver can actually process.
One or more of these, for weeks on end? It's often not hairballs or the food, but a hidden parasite load.
Free · 2 minutes
Answer a few quick questions about your cat's habits and symptoms. Find out whether a hidden parasite load could be behind them, with a plan built around your cat's weight.
Start the Parasite Check
Why natural cleanses fail cats
If a hidden parasite load is behind the signs, a natural cleanse is the obvious answer. Except cats are missing a liver enzyme that dogs and people rely on to break down many plant compounds. It's the same reason a single Tylenol can be dangerous for a cat.
That's a problem, because the herbs behind most "natural" dewormers were chosen for dogs. So cat owners were left with two options: a formula their cat can't process, or one so diluted it barely does anything.
We started from the cat's liver and worked backwards.
A standard stool test looks for eggs and cysts floating in a sample from one single morning. In a study of 95,803 cats, three out of four Giardia cases picked up by antigen testing were missed by that standard float.
It isn't a bad test, and your vet did the right thing running it. It's a snapshot of one day. And it's why so many owners are told everything looks fine while the vomiting, the loose stools and the dull coat carry on for months.
That hidden, low-level load is what a daily cleanse is for.
Sweet et al., Parasites & Vectors (2020), n = 95,803 cats.
Parasite Cleanse Drops
A daily, fish-flavored cleanse that targets the hidden parasite load, then soothes and rebuilds the gut. Mix it into wet food. No pill, no towel, no fight.
What's inside
Chosen for how a cat's body processes them, and for what they do to the load.
Rich in cucurbitin — helps create a gut environment parasites struggle to hold on to, while supporting smooth digestion.
Berberine-rich root that targets the load at the source. Deliberately dosed low, with the feline liver in mind.
Natural mucilage that coats and calms the digestive lining during the cleanse.
A calming botanical for a comfortable digestive tract while the cleanse runs.
A probiotic yeast that keeps the cleanse gentle on the stomach.
A spore-forming probiotic that rebuilds a diverse, balanced gut afterwards.
An amino acid that fuels the cells of the gut lining as it recovers.
Give the full 21-day cleanse a fair try. If you don't see a difference in your cat, email us within 90 days and we'll refund your first order in full, even if the bottle is empty.
Good to know
A prescription dewormer is a medicine your vet gives for a confirmed infection, and nothing sold without a prescription replaces it. FelisLabs is the daily layer underneath: cat-safe botanicals that target the low-level load, plus two probiotics and L-glutamine to rebuild the gut lining. Most owners run it alongside their vet's plan.
That's most of our customers. Your vet did the right test, but a standard float is a snapshot of one day's sample and misses a lot — in one study of 95,803 cats, three out of four Giardia cases found by antigen testing were missed by the float. A daily cleanse doesn't need a diagnosis to be useful; it's there so the load never gets the chance to build.
Indoor cats get parasites less often — not never. Fleas can carry tapeworm in on another pet, a mouse gets in, and potting soil, other pets and the shoes you walk in with all count. The signs are the same as in outdoor cats: vomiting, loose stools, a dull coat. So 'she's indoor-only' shouldn't close the question.
The dewormer did its job. But most routine cat dewormers are aimed at worms, and Giardia isn't a worm. And a dewormer clears what's there that day. It doesn't stop the next flea, mouse or litter box from bringing it back. That's where a daily layer comes in: it keeps targeting the load between vet visits.
In a study of 95,803 cats, cats in for a routine check-up tested positive almost as often as sick ones. Cats can carry Giardia with no signs at all. And a cat picks things up again and again: a mouse, a flea, the garden, another pet. For a cat that looks fine, a daily layer is there so the load never gets the chance to build.
Mix the drops into wet food, add them to water or give them directly by mouth, once a day for the full 21 days. Follow the weight-based dosing chart that comes with every bottle.
The drops are fish-flavored and made to disappear into wet food. Start with a small amount mixed into a food your cat loves. And if it really doesn't work out, you're covered by our 90-day guarantee.
The formula was built around feline metabolism and contains no herbs that are known to be a problem for cats. For kittens, pregnant or nursing cats, and cats on long-term prescription medication, check with your vet before starting.
Every cat is different. Some owners see the first changes in the litter box in the first week or two; for others it shows in the coat or the vomiting first. The full cleanse takes 21 days, and a daily serving after that keeps the load from coming back.
