The toothbrush is still in the drawer.

You know the one. It came in a kit with poultry-flavoured paste, and you used it four times. Maybe six. He turned his head, you pushed, he backed up, and somewhere in there you both quietly agreed this was not going to be a thing you did.

So you did what everyone does. You bought the dental chews. Then a water additive, because the chews felt like a cop-out. Maybe a finger brush that is still in its packet.

And the part almost nobody says out loud: you feel guilty about it, and you have never told anyone. Not the vet, who asked. Not the person you live with, who is not brushing them either.

Here is what owners notice and cannot explain away. He seems fine — eating normally, playing normally, no different from last year. But you turn your head when he yawns near your face. And you have looked up what a professional cleaning costs, closed the tab, and not booked it.

So the guilt just sits there. Not because anything is obviously wrong — because there is a job you know you are not doing.

The fight was never the point. And the part that actually matters was never on the surface of the teeth.

• The toothbrush is still in the drawer, and you know roughly when you last used it
• You bought the dental chews instead — then a water additive after that
• There is a finger brush somewhere that never made it out of the packet
• You turn your head a little when he yawns close to your face
• You have looked up what a professional cleaning costs, closed the tab, and not booked it
• You have promised yourself you will start again Monday, and you have promised it more than once
• Your vet asked how the brushing was going and you rounded up

If four or more of those landed, read this part slowly. It is the one owners get wrong about themselves.

Here is the reframe. You have been treating this as a teeth problem — a cleaning job you keep failing. It is not. In dogs, trouble in the gum tissue is the most commonly recorded finding in the mouth [1].

The tooth is the visible part. What holds it is a bed of living tissue — gum, ligament, bone — rebuilt by its own cells every day of his life.

Think of a fence post. You can scrub the post until it shines. If the ground it is planted in has gone soft, the post still moves. Nobody looks at the ground, because the post is the part you can see.

The teeth are the post. The tissue is the ground.

And tissue rebuilt daily runs on cells that never stop working, and those cells need a steady supply of energy. That machinery slows with age [2], and none of it announces itself.

Now the honest part, and it is the most important sentence here. Nothing in a bottle cleans a tooth — not this, not a chew, not an additive. And some changes in a dog’s mouth are medical problems that need a vet, not a supplement — if he is pawing at his face, dropping food, or one side looks different, get him seen.

Talk to your vet about his dental care. Then read on for the part you can do daily.

Most owners reading this have already spent money here. A bag of dental chews, then a different brand. A bottle of water additive. Maybe a kit still in the cupboard. Each one bought on a Tuesday with real intentions.

And then nothing felt resolved, and you filed it under something you are bad at. You did not stick with it. You picked the wrong one. You should have started when he was a puppy.

Almost none of that is true. There are two simpler explanations.

First: none of it was aimed at the tissue. Everything on that shelf works on the surface of a tooth — scrubbing, scraping, rinsing. That is a fine thing to do. It is not the same job as supporting the living tissue underneath, and no amount of the first turns into the second.

Second: the part that was changing quietly does not happen in his mouth. It happens inside cells, on a schedule that has nothing to do with your brushing routine.

Cells run their work on a helper molecule called NAD+, and levels of it tend to fall as an animal gets older [3]. In studies on aging mice, much of that drain is driven by an enzyme called CD38, which climbs with age [4]. That part has not been studied in dogs yet, and we are not going to pretend otherwise.

Less energy available. More of it spent. And the tissue that has to be rebuilt every single day is doing it with whatever is left over.

Pawprint Protocol was not built for mouths. It was built by owners who wanted to support what happens inside cells as a dog ages — and the tissue holding his teeth is some of the hardest-working tissue in his body.

The lead active is NMN, the direct building block for NAD+, and the only active here with published dog research behind it. Here is exactly what that research is, because the distinction is the whole thing. Oral NMN has been given to beagles in a safety study and was well tolerated [5] — though it tested NMN on its own, not this one, so it proves nothing about Pawprint Protocol as a finished formula. That study was also about safety: the NAD+ measurements in the same paper came from mice, not from the dogs, so nobody has shown a rise in NAD+ in a dog.

Resveratrol and CoQ10 are in the dropper too, as part of the daily nutrient support in the formula. Neither is dosed in a way that would let us claim a gum-specific effect, so we do not claim one.

Use the dropper to add the recommended daily amount to your dog's food. Follow the directions on your bottle. It sits alongside brushing and regular dental checks; it does not replace either one.

Owners tell us the first thing they notice is not in his mouth. It is that they stopped feeling bad every time he yawned.

The dental aisle at any pet store is a wall of the same promise: work on the surface of the tooth. If that promise had settled it for your dog, you would not have read this far.

Pawprint Protocol works on a different layer — the cellular energy his tissues are rebuilt with, including the tissue holding his teeth. A few drops of liquid on his food, once a day.

Four things in the dropper, each with a job:

• NMN: The direct building block cells use to make NAD+, the helper molecule that tends to decline with age. This is the lead, and the only one here with published dog research — a safety study [5].
• NAD+: Included as part of the same pathway, supporting the cellular energy system his tissues run on.
• Resveratrol and CoQ10: A pair, present as daily nutrient support. Neither is dosed to carry a claim of its own, and we do not give them one.
• Liquid drops: Measure the recommended daily amount and add it to food.

✔ Supports the normal, healthy state of gum tissue
✔ Supports the cellular energy that naturally declines with age
✔ Part of a daily routine alongside brushing and regular dental checks
✔ Works alongside any food (kibble, raw, fresh, home-cooked)

Made for dogs 7 and up. Individual results may vary.

This is where most pages promise you a whiter tooth or a sweeter breath. We are not going to. Nothing in this bottle cleans a tooth, and ninety days will not change that. What owners describe instead is a change in what they do. Individual results may vary.

Small, and not about his mouth at all. The bottle ends up next to the food bin and the drops stop being a decision. Owners tell us the first week or two is the only stretch where they had to remember it.

This is usually where the guilt goes quiet. Not because anything visible changed — because there is now something you do every day and you can point to it. Owners describe looking in his mouth more often once they stopped feeling like they had already failed at it.

Owners often mention the vet around here. Having a daily routine to report makes the dental conversation easier to start, and a fair number tell us they finally booked the cleaning they had been putting off. That is the opposite of replacing it. That was always the point.

For most families this is the one that matters: it has been three months and nobody has had to think about it. The drops happen. The brushing, when it happens, happens on top of them.

Three months in, the job changes from starting to keeping. Cellular energy keeps declining with age, and that tissue keeps being rebuilt daily either way.

And it is worth saying plainly: this is support alongside dental care, never instead of it. Individual results may vary.

You did not fail at this. You were handed a job that needed a wrestling match twice a day, and you sensibly stopped.

The part worth supporting was never the surface of the tooth. It is the living tissue underneath, rebuilt every day out of whatever energy his cells have left to spend.

That part you can support tonight, with a few drops on dinner.

Reviews are unedited excerpts from verified Trustpilot reviews of Pawprint Lab. They describe owners’ experience of the daily formula in general, not dental care. Individual results may vary.

[1] Wallis, C. A review of the frequency and impact of periodontal disease in dogs. Journal of Small Animal Practice, 2020; vol 61. Review, not a primary study — category evidence, it did not test this product. PMID 32955734.

[2] Chistiakov, D. A. et al. Mitochondrial Aging and Age-Related Dysfunction of Mitochondria. BioMed Research International, 2014; vol 2014. Review — category evidence, it did not test this product. PMID 24818134.

[3] Peluso, A. et al. Age-Dependent Decline of NAD+ — Universal Truth or Confounded Consensus? Nutrients, 2021; vol 14. Review — category evidence, it did not test this product. PMID 35010977.

[4] Camacho-Pereira, J. et al. CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction Through an SIRT3-Dependent Mechanism. Cell Metabolism, 2016; vol 23. Mouse study. PMID 27304511.

[5] You, Y. et al. Subacute Toxicity Study of Nicotinamide Mononucleotide via Oral Administration. Frontiers in Pharmacology, 2020; vol 11. Safety study in beagles; NAD+ was measured in mice, not in dogs. PMID 33384603.