You noticed him slowing down before anyone else did.
The stiffness getting up. The pause at the bottom of the stairs. The stools that just won't stay consistent. You're not imagining it — and you don't have to just wait and watch. Tyche is one daily chew that supports the two systems a big, active dog leans on hardest: his joints and his gut.
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He can't tell you where it hurts. So it falls on you to catch it.
That's the hard part of loving a big, active dog. He'll push through stiffness because he wants to keep up with you. He'll eat something that doesn't sit right and never let on. By the time a problem is obvious, it's usually been building for a while — and the small signs were there first. Noticing them isn't overthinking. It's the most useful thing you can do for him.
A big, active dog isn't just a bigger pet.
He carries more weight, hits the ground harder, and asks more of his body every single day. Most joint chews are built for the average lap dog — and they treat the joints alone, as if the gut has nothing to do with how a dog feels and absorbs what he eats.
Heavier load, sooner
Large and giant breeds put real, repeated stress on hips, knees and spine years before they look "old." Wear-and-tear starts early — often between 3 and 8 — while he's still fully in the game.
The gut gets ignored
Active dogs, diet changes and big frames often mean a touchier gut. A joint chew that does nothing for digestion leaves half the picture unaddressed — and leaves you juggling a second product.
Generic doses, generic results
Overfamiliar glucosamine blends at low, one-size doses are why so many owners say "I tried it and couldn't tell it did anything." Under-dosed support is easy to not notice.
Two bottles, twice the hassle
Buying a joint chew and a separate probiotic means two costs, two routines, and two things to forget. Most owners quietly give up on one of them.
One chew. Two systems.
We put a genuinely evidence-backed joint ingredient and a digestive-support probiotic into a single daily chew — built and dosed for big, active dogs, so you support both at once and only have one thing to remember.
Move like himself
UC-II® undenatured type II collagenUC-II is the joint ingredient with the strongest dog-specific research behind it — the part of this formula we feel most confident about. It's what supports comfortable, willing movement in dogs starting to show everyday wear-and-tear.
- Supports joint comfort & mobility
- Supports flexibility and daily activity
- Helps a maturing dog keep an active lifestyle
Digest like clockwork
Bacillus coagulans probioticA spore-forming probiotic chosen for digestive balance in dogs. It's here to support the steady, firm, predictable stools that make walks and life at home a lot less stressful — for both of you.
- Supports digestive balance
- Supports stool quality & regularity
- Supports everyday gut health
We'd rather show you the research than shout a claim.
Tyche is built on ingredients with real canine evidence — not a hype stack. Here's the honest version of what the science does and doesn't say.
See the research behind Tyche
UC-II (undenatured type II collagen) — joints
UC-II has the strongest dog-specific evidence of the joint ingredients commonly used in chews. Multiple controlled studies in dogs report improvements in owner-observed mobility and comfort, with good tolerability. In one study, benefits built over roughly 90 days of daily use — and faded after the dog stopped — which is why consistent daily support matters more than an occasional chew.
The evidence is strongest for dogs with mild-to-moderate, everyday wear-and-tear — not severe orthopedic disease. UC-II is a comfort and maintenance ingredient, not a substitute for veterinary care.
Bacillus coagulans — gut
Among spore-forming probiotics, Bacillus coagulans is the most defensible choice for canine digestive balance and stool quality. The dog-specific evidence base is thinner than UC-II's, so we keep our claims where the evidence sits: digestive balance, stool quality, and everyday gut health — not immune or stress "superpowers."
Tyche is a daily supplement, not a medicine. It is not intended to diagnose, treat, cure, or prevent any disease, and does not replace veterinary care. If your dog has a diagnosed condition or takes medication, check with your vet first.
Still not sure? That's fair.
One chew a day. That's the entire routine.
No powders to measure, no pills to hide, no two-product juggling. If he'll take a treat, he'll take Tyche.
Give one chew
Same chew for every size — one a day, with or without food. That's it.
Keep it consistent
The support builds with daily use, so make it part of the morning or dinner routine.
Watch the small wins
Easier rises, steadier stools, more willing on the stairs — the everyday stuff.
"In eight years with large breeds — mostly reactive dogs and behavior cases — I've watched plenty of owners buy a joint chew, see nothing, and quietly give up. That skepticism is fair: most of those products are under-dosed and built for a lap dog, not a big frame. What made me pay attention to Tyche is that it leads with UC-II — the one joint ingredient that actually has dog research behind it — and it's honest that you need to give it a couple of months of daily use before you judge it. One chew, joints and gut together, every day: that's the version owners actually stay consistent with long enough to see something. That's why I'm comfortable pointing people to it."
What owners are saying
Pick how you want to give it.
Subscribe and you get free shipping and the 90-day Foundation Promise. One pack is a 30-day supply.
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- 30-day supply delivered monthly
- Free shipping on every order
- Skip, pause, or cancel anytime
- 90-day money-back guarantee
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There's almost no way to lose here.
90 days, money back
Give Tyche a real run. If you don't see your dog moving and feeling more like himself, tell us within 90 days and get your money back — even if the bag's empty.
Subscription orders, first-time customers, one 30-day supply per household.
30-day "he'll eat it" promise
Worried he's too picky? If your dog won't take Tyche within the first 30 days, let us know and we'll make it right. No fighting him at dinner.
Applies to your first order.
Questions, answered straight
Is one chew really enough for a large or giant breed?
Yes. Tyche is dosed so a single daily chew delivers the same support across sizes — including big and giant breeds. One chew a day is the full routine, no scaling up.
How long before I notice anything?
Give it time and be consistent. The joint research points to benefits building over roughly 90 days of daily use — which is exactly why the guarantee runs a full 90 days. Some owners notice smaller changes (like steadier stools) sooner.
Can Tyche replace my dog's medication or vet care?
No. Tyche is a daily supplement for support and maintenance — not a medicine, and not a replacement for veterinary care. If your dog has a diagnosed condition or takes medication, talk to your vet before starting.
My dog has a sensitive stomach. Is this okay for him?
The gut support is a core reason Tyche exists. The Bacillus coagulans probiotic is included to support digestive balance and steadier stools, so it's designed with touchier stomachs in mind. Introduce it with food if he's especially sensitive.
How does the subscription work?
You get a 30-day supply delivered every month at 15% off, with free shipping. You can skip a shipment, pause, or cancel anytime — no phone calls, no hoops.
What if it doesn't work for my dog?
Then you're covered. The 90-day Foundation Promise means you can get your money back if you don't see a difference, and the 30-day taste guarantee covers you if he won't eat it. The risk is on us.
The best time to support his body was a year ago. The next best time is today.
One chew a day, for the joints and gut he depends on most — backed by a 90-day promise. Start now, while the signs are still small.
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