Most Owners Think Their Senior Dog Is Slowing Down Because of the Floors. Here's What's Happening Inside That No Rug Can Reach.
Why grips, ramps and harnesses help your dog stay on their feet, but can't stop the world from getting smaller.
You put down the runner rugs. You bought the toe grips. You found a ramp for the car and stairs for the couch. Maybe you even ordered one of those lift harnesses with the handle on the back.
And for a little while, it helped.
But if you're honest, you've noticed the small things haven't stopped. He pauses at the bottom of the stairs now, the ones he used to take two at a time. He stands in front of the couch and looks at it, then looks at you. The walks you used to cut short for him are now the walks he cuts short for himself, turning for home at the corner.
One owner on a dog forum put it in a way that stuck with us:
"I'm going with his happiness level, and that is a constantly smaller world."OverandOnward, Chronicle Forums, 2023
That's what this is really about. It's not the stairs or the couch. It's the feeling that your dog's world, which used to be the park and the lake and the whole backyard, is shrinking down to the hallway, then the living room, then one spot on the rug.
You Already Proved Something Important (Without Knowing It)
You fixed the floor. You fixed the stairs. You fixed the car. You made the house as easy as a house can be.
And your dog kept slowing down anyway.
That isn't a failure. It's information. If the floors were the whole problem, fixing the floors would have fixed it. The grips and the rugs did exactly what they're built to do: they stopped the slipping. What they were never built to do is reach what's going on inside your dog.
Owners describe the gadget years the same way, over and over:
"Till morning, they were all off. He got them all off. so much for that $40."Deb, Walmart review of toe grips, 2026
"The straps broke completely after 2 lifts."Jordan, Walmart review of a lift harness, 2023
"way too soft. dogs are afraid of it. they tend to fall off it."Fran, Walmart review of dog stairs, 2025
$40 here. $60 there. A ramp, a harness, another set of grips. It adds up, and the slowing doesn't stop.
So let's take this off your shoulders right now: you didn't choose the wrong products. You were solving the outside of the problem, because the outside is the only part anyone ever shows you.
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7 Signs Your Dog's Slowdown Isn't Only About the Floors
Read through these and count how many sound familiar:
- They pause at the bottom of the stairs they used to run up, or wait for you to go first.
- They look at the couch, the bed or the car instead of jumping, then look at you.
- Their back end looks "wobbly back there": legs a little wide, or slipping even on the rug.
- They take longer to get up after a nap, and sometimes need a second try.
- The walks get shorter. They turn for home earlier, or lag behind on the way back.
- They sleep more and greet you less. The door used to be an event. Now it's a tail thump from the bed.
- You've already bought grips, a ramp or a harness, and the slowing kept going.
If you nodded at two or three of these, you're looking at something every aging dog goes through. It's normal. But "normal" doesn't mean "nothing you can do".
If your dog is limping, crying out, losing weight without reason, or changed suddenly, please see your vet first. That's different from the gradual slowdown described here.
What's Actually Happening: The Shrinking-World Cycle
To understand why the floor fixes never quite catch up, it helps to see aging the way researchers do. It isn't one thing that breaks. It's a slow cycle of changes, and each one makes the next a little easier:
Every cell has tiny engines that turn food into energy. They rely on a helper molecule called NAD+. One of the age-related changes researchers study is that NAD+ levels fall as bodies get older, seen in people and animals.
A shorter walk. One less trip up the stairs. A nap instead of a toy. So gradual most owners don't see it for months.
Muscle is "use it or lose it". A study of healthy Labradors found older dogs carried noticeably less muscle along the back and spine than young ones.
Less muscle makes movement harder, so your dog moves even less. The stairs become a wall. The car becomes a lift. The park becomes the yard.
Now look at where the grips, ramps and harnesses sit in that cycle. Outside it. They help your dog cope with step 4. They don't touch steps 1, 2 or 3.
That's a big part of why the slowing keeps going, even in a house with perfect floors.
The Part Nobody Says Out Loud
If you've had an older dog before, you already know where your mind goes on the slow days.
You start counting. Good days and bad days. You notice you've stopped asking "want to go for a walk?" because you're not sure he'll want to. You catch yourself watching him sleep a little longer than you used to.
"There are the good days and bad days..."lolalola, Chronicle Forums
Nobody can promise you more time. Anyone who does is selling you something they can't back up.
But here's what you can do: stop waiting for the next gadget, and start looking after the steps your dog still has, while they still have them. Because the cycle doesn't pause. Every week your dog moves a little less, it turns a little further.
"Stairs may be doable now, but the ability to use them can disappear quickly in a dog that is already losing mobility."chestnutmarebeware, Chronicle Forums
Why the "Next Gadget" Will Never Be the Answer
Walk into any pet store and the senior-dog aisle is all outside fixes: softer beds, grippier socks, sturdier ramps, bigger harnesses. Each one is built for a dog who has already lost a step. None of them is built to support the steps they still have.
And the cost isn't only money. It's your back, too:
"I basically carry her up the stairs at night but she comes down on her own."foxinachickenhouse, BackYardChickens forum
If you've ever lifted a 70-pound dog into an SUV, you know exactly what that means.
So the real question isn't "which gadget should I buy next?" It's this: what are you doing for the inside?
Most senior dogs already get something. In the Dog Aging Project, two out of three senior dogs were on at least one supplement. But most of those are joint chews (the "HUGE" tablets so many owners say their dogs refuse) aimed at joints, not at the energy every cell runs on.
That's the gap we built Good Days to fill. And it starts with something surprisingly simple: one dropper on dinner, and two minutes of the right kind of movement.
The Inside-Out Routine: One Dropper + Two Minutes
Good Days isn't another gadget, and it isn't another giant chew. It's a simple daily routine built around the part of the Shrinking-World Cycle the floor fixes never reach. We call it Drop + 2.
The Drop: one dropper on dinner
Good Days Senior Daily Drops are a beef-and-apple-flavoured liquid you squeeze right onto your dog's food. Each dropper contains NMN, a building block the body uses to make NAD+, alongside NAD+, resveratrol and CoQ10.
No pills hidden in cheese. No chews left on the floor. No "HUGE" tablets. If your dog eats dinner, your dog takes the drops.
"My dogs hate these. They won't eat them no matter how I try to hide them... These were a waste of money."JJGandy, Walmart review of a senior chew, 2024
That's the review we built this format to avoid.
The senior drop dogs actually eat
Chews get spat out. Tablets get hidden in cheese and found anyway. Good Days is a beef-and-apple liquid that goes straight on dinner. If your dog eats dinner, your dog takes the drops.
The +2: two minutes of the right kind of movement
Remember step 3 of the cycle: muscle is "use it or lose it". A 2022 veterinary review of senior-dog rehabilitation names regular strength and walking exercise (along with enough protein in the diet) as the main tools for helping aging dogs hold on to muscle.
So every order comes with our free 2-Minute Senior Dog Routine, a short daily sequence you can do in the living room:
- Sit-to-stands: slow and steady, like squats for dogs.
- Slow, controlled walking: a few minutes at your dog's pace, not a race.
- Gentle inclines: a small slope or one or two stairs, with you beside them.
If your dog has a joint, heart or other health condition, check with your vet before starting any new exercise.
The drops support the inside. The movement uses it. That's the whole idea: keep the rugs, and add the inside layer.
See If Good Days Is Right for Your Dog →What's in the Bottle (Every Dose, Printed)
Several of the best-known senior "longevity" drops don't tell you how much of each ingredient is in them. We think you should know exactly what you're giving your dog. Every active ingredient, per 1 ml dropper:
| Ingredient | Per 1 ml | What it is |
|---|---|---|
| NMN (nicotinamide mononucleotide) | 30 mg | A building block the body uses to make its own NAD+ |
| NAD+ (nicotinamide adenine dinucleotide) | 100 mg | The energy-helper molecule itself. Research on how well NAD+ taken by mouth is absorbed is limited, which is why the formula is built around NMN |
| Resveratrol | 5 mg | An antioxidant found in grapes and berries |
| Coenzyme Q10 | 5 mg | An antioxidant cells use in energy production |
Also in the bottle: vegetable glycerin, purified water, rice syrup, beef and apple flavouring. No xylitol, which is toxic to dogs.
How much to give: Up to 22 lb: 1 dropper · 22–55 lb: 2 droppers · 55–88 lb: 3 droppers · 88 lb+: 4 droppers (follow the directions on your bottle).
"Why 30 mg of NMN? I've seen chews with more."
Fair question, and we'd rather answer it than hope you don't notice. First, our drops are dosed by your dog's weight, so a bigger dog gets more droppers. Second, and more honestly: research hasn't yet established an ideal NMN dose for dogs. Anyone printing a big number on the front of a bottle can't point you to a study proving that number works better, and neither can we. So instead of a bigger number, we give you three things: the exact dose, a routine that adds the exercise research does support, and a guarantee if it isn't right for your dog.
The Honest Science: What Research Shows, and What It Doesn't
You'll see a lot of big promises in this category: "adds years", "98% absorption", "clinically proven". We're not going to make those. Here's what we can tell you honestly:
What the research shows
- NAD+ is a molecule every cell uses to turn food into energy.
- In studies of people and animals, NAD+ levels fall with age.
- NMN is a building block the body uses to make NAD+. In human studies, NAD+ building blocks taken by mouth were well tolerated and raised NAD+ in the blood.
- Researchers are actively studying dog aging, including the Dog Aging Project and a 2024 placebo-controlled study of an NAD+-support blend in 70 senior dogs (a different formula from ours, so we don't borrow its results).
- Older dogs carry less muscle along the back and spine, and exercise is the best-supported way to help them keep it.
What it doesn't show (yet)
- That falling NAD+ is what makes a dog slow down. It's one of several changes being studied.
- That any NAD+ product, ours included, makes dogs live longer.
- Long-term results in dogs. Most NAD+ research is in people and lab animals.
- Every dog is different. Some owners notice changes; some don't.
That's why we built Good Days as part of a routine (drops plus movement) rather than a miracle in a bottle, and why we back it with a guarantee instead of hype.
Try the Inside-Out Routine Risk-Free →Who This Is For (and Who It Isn't)
A good fit if:
- Your dog is 7+ (6+ for large breeds) and slowing down gradually. There's no upper age limit: for a 13, 14 or 15-year-old, the goal is comfort, routine and as many good days as you can give them.
- You've already fixed the floors and want to do something for the inside.
- Your dog refuses chews and tablets.
- You want to know exactly what's in what you're giving them.
Talk to your vet first if:
- Your dog has kidney or heart disease, or takes any medication.
- Your dog is limping, in obvious discomfort, or changed suddenly.
- Your dog is pregnant, nursing or under 1 year old.
Stop use and contact your vet if you notice any changes you're unsure about, such as restlessness or upset stomach.
Your First 60 Days: What to Watch For
Changes in an older dog are usually small and gradual, and easy to miss if you're not looking. So every order includes a free Good Days Journal: a simple one-page tracker for the little moments that matter.
Days 1–7: Start gently. Begin with half the suggested amount on dinner for the first week, then move to the full dose. Start the 2-Minute Routine on day one. Write down your starting point: how many stairs, how long the walk, how often they get up to greet you.
Weeks 2–4: Build the habit. Drops on dinner, two minutes of movement, every day. Consistency matters more than anything here. Keep logging the small things: the walk, the stairs, the door.
Weeks 5–8: Look back. Compare your journal to day one. Some owners notice the first changes in behaviour (more interest at the door, a toy picked up again) before anything else. Others take longer, or don't see a difference. Either way, you'll know, because you wrote it down.
Day 60 and beyond: Decide. If you're happy, keep going. If you're not, you're still inside your 90-day guarantee. You won't have wasted a bottle wondering.
Individual results vary. Good Days supports healthy aging as part of a routine with exercise. It is not a treatment for any disease.
What It Costs (and What You've Already Spent)
Think back over the gadgets: the $40 grips that came off overnight, the harness, the ramp, the stairs your dog wouldn't use. Most owners of a senior dog have spent more on outside fixes than they'd like to add up.
Good Days is $44.99 every 4 weeks on subscription, about the price of one set of toe grips, and it comes with the routine, the journal and a full 90-day guarantee.
Try Good Days Risk-Free
- Free 2-Minute Senior Dog Routine (video + printable)
- Dosing-by-weight chart + the Good Days Journal
- Free shipping. For the Subscription, Good Days Drops will be delivered every 4 weeks to your door. If bought individually it will arrive between 5-11 days after purchasing
- 90-day empty-bottle guarantee: if you're not happy, email us and we'll refund you. No need to send anything back.
- Subscriptions: pause, skip or cancel anytime in 1 click
The Bottom Line
Your dog has spent years meeting you at the door. Running ahead on the trail. Claiming the best spot on the couch.
The rugs and the ramps were a good start. They kept your dog on their feet. But they were only ever working on the outside.
And the steps your dog still has, the stairs they can still manage and the walk they still want, are worth looking after now, not after the next one is gone.
Keep the rugs. Add the inside layer. One dropper on dinner. Two minutes of movement. 90 days to see for yourself, with nothing to lose.
Because what every owner in your position really wants isn't a new gadget.
It's more good days together.
Start the Inside-Out Routine Today →Quick Questions
What does it taste like?
Beef and apple. Most dogs take it right on their food.
My dog is 14. Is it too late?
There's no upper age limit. For very senior dogs, the goal is comfort and good days, not reversing age. Start with half the suggested amount, and check with your vet first if your dog has any health conditions or takes medication.
Can I use it with my dog's joint supplement or fish oil?
Usually yes. Good Days works on a different layer. If your dog takes medication, check with your vet first.
Why isn't the NMN dose higher?
Our drops are dosed by weight, so larger dogs get more. Research hasn't established an ideal NMN dose for dogs, so we print exactly what's in every dropper rather than a big number no one can back up.
Is it FDA approved?
No pet supplement is FDA approved. Good Days is a supplement, not a drug, and isn't intended to diagnose, treat, cure or prevent any disease.
Where is it made?
United States
How long does shipping take?
For the Subscription, Good Days Drops will be delivered every 4 weeks to your door. If bought individually it will arrive between 5-11 days after purchasing
Can I cancel my subscription?
Anytime, in one click, from your account or by emailing us.
References
- Simon KE, et al. Scientific Reports 14:12399 (2024). Randomized, placebo-controlled trial of an NAD+ precursor blend in senior dogs.
- Freeberg KA, et al. Journals of Gerontology: Series A 78(12):2435 (2023). Review of NAD+ precursor supplementation in humans.
- You Y, et al. Frontiers in Pharmacology 11:604404 (2020). Safety study of NMN in Beagle dogs.
- American Journal of Veterinary Research 73(11):1794 (2012). Age-related muscle loss in healthy Labrador Retrievers.
- Frye CF, et al. Frontiers in Veterinary Science 9:842458 (2022). Review of canine geriatric rehabilitation.
- Dog Aging Project. American Journal of Veterinary Research (2025). Supplement use in companion dogs.