Biopurr®
2 fl oz / 60 mL
Only sold at Biopurr.com — never on Amazon.
Beware of fake Biopurr listings.
Real Biopurr is only sold here at Biopurr.com. Liquid probiotics sold on Amazon and third-party marketplaces have been found to contain different ingredients than advertised — and may not be safe for your cat.
How long until I see results?
Most cat parents see firmer stool and fewer hairballs within 2–4 weeks. Coat shine and energy improvements typically show up around weeks 6–8. Probiotics work best with daily consistency.
What if my cat refuses the drops?
Biopurr is virtually flavorless and most cats don't notice it. If your cat is picky, mix the drops into wet food, broth, or a small treat. The dropper makes dosing easy.
Is it safe for senior cats and kittens?
Yes — safe for all life stages. Senior cats actually tend to benefit most because gut bacteria diminishes with age. For kittens under 8 weeks, check with your vet first.
Shipping & Returns
Free shipping on 3+ bottle orders. Single-bottle orders ship for $4.99 in the US. Every order is backed by our 90-day money-back guarantee — if you don't see results, we refund in full.
OUR PROMISE
Or every cent back. 90-day guarantee — no return shipping, no 'must be unopened' rules, no runaround.
See the science behind it →WHAT'S INSIDE
Formulated for cats — not repurposed from a human or dog supplement. No fluff, no fillers, no nonsense.
What it does
Native to a cat's gut, but stripped out by kibble's high-heat processing. Adds back the bacteria responsible for firmer stool, regular digestion, and a calmer inflammatory response in the gut lining.
What it does
Crowds out harmful bacteria that cause vomiting, loose stool, and bad breath. Supports the gut-mood pathway that keeps cats calmer and more playful.
THE OUTCOMES
Not in a single dramatic moment — but in stages, the way real biology works.
Firmer stool. Less mess. Fewer 3am hairball wake-ups. The first thing cat parents notice — and usually the fastest to show up.
VISIBLE BY WEEK 2-4Less anxious vocalizing. Less hiding. More play, more curiosity. The gut-mood pathway is real — and it works both ways.
VISIBLE BY WEEK 4-8Shinier coat. Sleep regulates. Senior cats move easier. The compounding effects of a balanced gut over time.
VISIBLE BY MONTH 2-3THE MOMENT IT SHIFTS
For two years she'd been hiding under the couch. Vomiting after meals. Tired all the time. Eight weeks on Biopurr — yesterday she climbed onto my lap during a Zoom call and stayed there. Same cat. Different gut.
— Sarah M., mom to Pepper, 11, calico
RISK-FREE
No return shipping. No 'must be unopened' rules. No scripted runaround. Three months on us — if it doesn't work, you don't pay.
READY?
Two drops a day. 90-day guarantee. Free shipping on 3+ bottles.