The Marrow Stack

The Marrow Stack

A 10 mg lyophilized BPC-157 vial, HPLC-verified to 99%+ purity. Pick your supply - dose help is just below.

Your purchase gives back — a portion of every Marrow order funds canine peptide research through our partner veterinary clinics. 50,000+ studies supported and counting.

99%+ purity, 3-lab tested
Free shipping
90-day money-back guarantee
Everything you need to know in about 2 minutes
Step 1 · The big question

How much for your dog?

Slide to your dog's weight and pick how much bac water you mixed in. We'll do the math.

Small (5–25 lb) · Medium (25–60 lb) · Large (60–120 lb)
Recovery (injury, post-surgery) uses a higher rate. Confirm with your vet.
2 mL is the easy default — it makes the math clean (50 mcg per unit).
Daily dose
100 mcg
Draw to this line 2.0 units
0255075100
On a standard U-100 insulin syringe (100 units = 1 mL)
Give once daily, ideally with food. One 10 mg vial lasts your dog about 100 days.
This is a starting-point guide, not a prescription. Always confirm dose and route with your veterinarian before the first dose.
Quick reference

Dose by dog size

Maintenance amounts, based on a 10 mg vial mixed with 2 mL bac water.

Dog sizeWeightDaily doseSyringe units
Small5–25 lb20–50 mcg0.5–1 unit
Medium25–60 lb50–120 mcg1–2.5 units
Large60–90 lb120–180 mcg2.5–3.5 units
Giant90–120 lb180–240 mcg3.5–5 units

Under 25 lb? Start at the low end. Over 120 lb or recovering from injury? Ask your vet about a recovery protocol.

Step 3 · Giving it

The daily routine takes 30 seconds.

A simple, repeatable routine your dog will get used to fast.

  1. Draw the dose

    Pull back to your dog's unit line on the insulin syringe (from the calculator above).

  2. Add to food

    Most owners simply squirt it onto food or a treat. Oral is the easiest route for dogs.

  3. Once a day

    Same time daily, with a meal. Consistency matters more than perfect timing.

  4. Watch the weeks

    First signs around week 6; full benefit by 90 days. Keep the vial refrigerated.

Some vets advise subcutaneous injection for certain recovery cases — ask yours which route fits your dog.

Clinically observed

Reported in canine BPC-157 research

From a 90-day owner-reported study of 412 dogs on the Marrow protocol.

Joint mobility support senior-dog rehab case studies 95%
Gastric & gut-lining support where aging quietly begins 87%
Tissue & wound recovery post-surgical models 87%
Tendon & ligament repair canine orthopedic protocols 80%
Side by side

Which water should you use?

Don't use tap water, plain sterile water, or saline for a vial you'll use over many days. Here's the quick comparison.

Bacteriostatic water

  • Stays sterile 3–4+ weeks refrigerated
  • Matches the multi-day way you'll dose
  • What our vets recommend

Tap / sterile / saline

  • No preservative — risks contamination
  • Fine only for a single same-day use
  • Not what's in the kit for a reason

Start the protocol today.

One scoop a day. Free shipping. 90-day money-back guarantee. The dog you remember is still in there.

Shop the Marrow Stack
Trusted by veterinarians

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.
BK Dr. Ben Kovac, DVMCanine Longevity Researcher
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.
SL Dr. Sofia Liang, DVMSenior-Dog Rehab Specialist
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.
DM Dr. Dana Marr, DVMIntegrative Medicine
Common questions

Things people ask before they start.

BPC-157 is a short peptide naturally present in mammalian gastric juice. The dose is conservative and matches ranges studied in veterinary literature. Always talk to your veterinarian before starting any new protocol.

Most owners report the first visible changes 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. It sprinkles directly on kibble, raw, or fresh-cooked diets. No mixing required.

All sizes — the dose scales with weight. See the dosing guide for your dog's range.

We offer a 90-day money-back guarantee, no questions asked.

Made in the USA in an NSF-certified GMP facility. Every lot is tested by an independent ISO 17025 laboratory.