More years.
Better years.
The peptide-led longevity protocol built for the dog you can't imagine life without.
We built Marrow because we couldn't bear losing them sooner.
Marrow was started by a small group of integrative veterinarians, longevity researchers, and dog parents who'd watched too many good dogs slow down too soon. The traditional supplement aisle wasn't built for cellular aging — it was built for shelf life.
So we built the protocol our own dogs are on: peptide-led, gut-first, and rigorously third-party tested. Nothing in it that wouldn't be in nature.
The Marrow Stack
Foundation Daily + Longevity Boost — 90 ingredients and 8 longevity compounds in one daily ritual. Sprinkle on food. Show up every day. Watch the spark come back.
- Peptide-led: BPC-157 + KPV + colostrum
- NSF Certified GMP · NASC Compliant
- Replaces $1,200+/yr of pet supplements
- 90-day money-back guarantee
Aging starts where you can't see it.
By the time a dog looks "old" — the slower mornings, the missed stairs, the dimmer eyes — the cellular machinery has been quietly drifting for years. The gut lining thins. Mitochondria slow. Joints lose their cushion. Most dog supplements treat the visible symptoms. Marrow was built for what's happening underneath.
What your dog will feel.
Results from a 90-day owner-reported study of 412 dogs on the Marrow Stack protocol.
More Spark
Renewed daily energy and engagement
A Healthier Gut
Firmer stools and reduced itching
Shinier Coat
Softer, fuller coat in 6 weeks
Mobility Back
Senior dogs moving more freely
One stack replaces a shelf.
The typical longevity-minded dog parent runs 6 to 8 separate supplements. Marrow puts the active mechanisms in one daily ritual.
| Feature | Marrow | Typical Routine |
|---|---|---|
| Peptide-led (BPC-157, KPV) | ✓ | — |
| Gut-first formulation | ✓ | — |
| Joint, coat, mobility coverage | ✓ | ✓ |
| NSF Certified GMP | ✓ | Sometimes |
| Third-party lot testing (published) | ✓ | — |
| Daily routine | One scoop | 6–9 products |
| Monthly cost | ~$33 | $100+ |
What the people who actually treat your dog are saying.
Marrow is the first product I've felt comfortable recommending to clients asking about peptides. The dosing is honest and the lipid-delivery actually addresses oral bioavailability.
My senior-rehab patients on the stack hit their progression markers two to three weeks earlier. The coat changes alone are what get owners to keep going.
I've been waiting for someone to bring the human-longevity playbook to dogs without the disease-claim shortcuts. Marrow did it. The transparency is the differentiator.
See the spark come back.
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Things people ask before they start.
BPC-157 is a short peptide naturally present in mammalian gastric juice. The dose in Marrow (500 mcg/day) is conservative and matches the range studied in veterinary peer-reviewed literature. We use a proprietary lipid-delivery to support oral bioavailability. Always talk to your veterinarian before starting any new protocol.
Most owners report the first visible changes — stool firmness, coat shine, more meeting-you-at-the-door energy — at the 4 to 6 week mark. Joint and mobility shifts typically show up between weeks 8 and 12. We recommend a full 90-day protocol before evaluating.
Yes. Marrow is a once-daily powder topper that sprinkles directly on kibble, raw, or fresh-cooked diets. No mixing required, no syringes, no chasing.
Foundation Daily is dosed for dogs 25 lbs and up. For dogs under 25 lbs, use a half scoop. For dogs over 80 lbs, use one and a half scoops.
We offer a 90-day money-back guarantee, no questions asked. Most dogs treat it as part of the meal — no flavor-masking, no artificial sweeteners — but if yours doesn't, you keep the bottle and we refund you.
Made in the USA in an NSF-certified GMP facility. Every lot is tested by an independent ISO 17025 laboratory for heavy metals, glyphosate, microbials, and peptide identity. Results published with each batch code.