300mg NMN per serving · Dosed by body weight
Cellular Fuel
300mg of NMN per serving, plus NR and niacinamide — three separate NAD⁺ precursors, with the cofactors mitochondria need to use them. Dosed by body weight, from cats to giant breeds.
$49.99 once — about 40 days at his serving size, no renewal.
The 90-Day Good Years Guarantee
Give it one full cycle. If you don't see a difference on the walk, we refund the whole thing — chews already eaten, no return needed.
The Cellular Energy Crisis™
Every cell runs a repair budget. His has been quietly cut.
NAD⁺ is what mitochondria use to turn food into usable energy, and what cells spend on repair. It falls steadily with age across mammals.
That decline is why "slowing down" isn't only a feeling. Less NAD⁺ means less energy available for movement and less left over for maintenance — and the space between damage and repair is what we call the Repair Gap™.
NMN is the most direct precursor his body converts back into NAD⁺ — and this formula supplies three of them: NMN, nicotinamide riboside and niacinamide. Restoring the precursor is only half the job, so the same serving carries the cofactors mitochondria need to actually spend it: CoQ10 and PQQ for the energy chain, resveratrol and quercetin alongside them.
Illustrative representation of the age-related NAD⁺ decline described in mammalian research. Not a measurement of an individual dog.
What the dose actually does
Four reasons this works when the last three tubs didn't.
Energy his cells can actually spend
NMN converts into NAD⁺, the currency mitochondria use to produce ATP. More available currency means more fuel for the muscles that get him off the floor — which is why the first thing most owners report is an easier morning, not a dramatic one.
Repair that keeps closer pace with the damage
Cellular damage accrues at a steady rate his whole life. Repair capacity doesn't — it falls. Supporting the NAD⁺ pathway supports the maintenance side of that equation, so the Repair Gap™ widens more slowly.
Three precursors, not one
300mg of NMN per serving, alongside 100mg of nicotinamide riboside and 20mg of niacinamide. Three different routes into the same NAD⁺ pathway, because the body converts each one slightly differently — and every amount is printed on the pack rather than hidden behind a blend.
A chew he takes as a treat
A cold-extruded soft chew in chicken, beef, duck or salmon. No capsule to hide in cheese, no powder to stir through dinner. Cold extrusion also matters for what it protects: NMN is heat-sensitive, and a chew that survives a summer delivery van is worth more than one that arrives degraded.
Full disclosure
We print the milligrams, because the milligrams are the product.
Most pet supplements list ingredients without amounts. It's legal, it's common, and it's how a product can claim NMN while containing almost none of it.
Here is the entire panel — all seventeen actives, in milligrams, per serving. If a competitor won't show you theirs, you already have your answer.
Serving size: 2 soft chews (5g) · 60 servings per 300g tub · 120 chews
- NMN (β-Nicotinamide Mononucleotide)
- 300 mg
- Nicotinamide Riboside Chloride (NR)
- 100 mg
- Coenzyme Q10
- 50 mg
- Trans-Resveratrol (98%)
- 50 mg
- Quercetin Dihydrate
- 40 mg
- PQQ (Pyrroloquinoline Quinone)
- 10 mg
- Alpha Lipoic Acid
- 25 mg
- Astaxanthin
- 2 mg
- Taurine
- 100 mg
- L-Carnitine Tartrate
- 100 mg
- Omega-3 Fish Oil Powder
- 120 mg
- Vitamin B3 (Niacinamide)
- 20 mg
- Vitamin B6
- 5 mg
- Vitamin B12
- 100 mcg
- Vitamin E
- 20 IU
- Zinc Gluconate
- 10 mg
- Selenium Yeast
- 50 mcg
- Base
- Chicken powder, tapioca starch, chickpea flour, glycerin, coconut oil
Amounts shown per 2-chew (5g) serving. Under 10kg: 1 chew daily · 10–25kg: 2 chews daily · over 25kg: 3–4 chews daily. Grain-free. Contains chicken. Not for human consumption. Store below 25°C, away from direct light.
A practice, not a pill
What the first 90 days actually look like
Cellular repair compounds. Nothing here works in a week, and any brand that tells you otherwise is selling you something else.
Nothing visible yet — and that's expected
The chew goes down with breakfast. Behind the scenes his cells are being supplied with the NMN they convert to NAD⁺. Anyone promising a visible change this week is guessing.
The small things owners report first
Most describe it the same way: he gets up faster. Less of a production getting off the floor, a bit more interest at the door. Easy to miss unless you're watching for it.
The walk gets its distance back
This is the window owners write to us about. The route that had quietly shortened over two years starts stretching out again — not puppy energy, just a dog who wants to keep going.
It becomes the new normal
By the end of a full cycle you stop noticing improvements and start noticing the absence of decline. That's the entire point — this is maintenance, not a fix.
Individual results vary. Cellular Fuel is a nutritional supplement intended to support healthy aging — it is not a treatment for any medical condition.
Where it sits
How this differs from the tub already in your cupboard
| Feature | Cellular Fuel | Typical senior chew | Joint supplement |
|---|---|---|---|
| What it targets | Cellular energy and repair, via the NAD⁺ pathway | General "wellness" blend | Cartilage and joint tissue |
| NAD⁺ precursors included | Three — NMN, NR and niacinamide | One at most, if any | None |
| NMN amount disclosed | 300mg per serving, on the pack | Rarely stated | Not included |
| Every active shown in mg | All seventeen | Usually a proprietary blend | Sometimes |
| Dosing | By body weight, 1–4 chews | Often one size for every dog | Often weight-banded |
| Heat stability | Cold-extruded for shipping stability | Varies by brand | Varies by brand |
Comparison describes category norms, not any single named competitor. Always check a product's own label before switching.
From owners of big, older dogs
What people notice first
PLACEHOLDER — replace with a real, verifiable review before this page takes traffic.
PLACEHOLDER — reviews that name the specific thing the owner noticed (the walk, the stairs, the mornings) outperform generic praise.
PLACEHOLDER — never let a testimonial promise an outcome the rest of the page can't support.
Straight answers
The questions we get before anyone buys
Is NMN actually safe for dogs?
NMN has an established safety profile in mammalian research and is widely used in human supplementation. The serving here is dosed to body weight rather than given as one flat amount to every dog. Talk to your vet before starting, particularly if your dog takes medication or has a diagnosed condition.
My dog is allergic to chicken.
Worth reading the panel closely before you order. The standard chew uses a chicken powder base and natural chicken flavour, so a chicken-sensitive dog should take one of the other flavours — check the ingredient panel for the flavour you pick, and if you're unsure, email us and we'll send the exact panel before you buy.
Why is a serving two chews?
Because the amounts are real. Fitting 300mg of NMN plus sixteen other actives into a single palatable chew would mean either a chew a dog won't eat or amounts small enough to be decorative. Two chews of 2.5g each is what the formula actually needs — and it's why the panel is stated per serving rather than per chew.
How long before I see anything?
Most owners report the first small signal between weeks two and four — usually getting up more easily. The change people actually care about, the walk lengthening again, tends to land between days 30 and 60. If you've seen nothing by day 90, the guarantee covers you in full.
Can he take this alongside his joint supplement?
Yes — they do different jobs and plenty of customers run both. A joint supplement supplies raw material to one tissue; Cellular Fuel supports the energy and repair pathway every tissue depends on. If your dog is on prescription medication, check with your vet before adding anything new.
What if he won't eat it?
It's a soft chew, not a capsule, and most dogs take it as a treat. It comes in chicken, beef, duck and salmon, so a fussy dog usually has an option. If yours refuses all of them, email us and we refund in full — no return, no photographs of a rejected chew, no argument.
What exactly will I be charged, and can I stop?
One charge every 90 days for three tubs, shipping included, at the price shown above. No trial that quietly converts to something larger, no cancellation fee, no phone call. You get an email before every renewal, and skip, delay and cancel are all one click in your account.
My dog is 11, or much smaller than 25kg. Is this still right?
Both are fine. Age isn't a barrier — the decline is progressive rather than a cliff, and owners of older dogs report the same first signal. Size isn't either, because the dose scales rather than the formula: 1 chew a day under 10kg, 2 chews from 10–25kg, 3–4 chews above that. A small dog simply gets far more days out of the same tub.
The walk doesn't have to keep getting shorter.
You can't add years to the calendar. You can support the machinery that decides how good those years feel — starting with tomorrow's breakfast.
- Free shipping
- Cancel anytime
- Ships in 1–2 days
- Cold-extruded, ships stable