If you love a Lab, a Golden, a Great Dane, a Shepherd — every year matters more than you know. This playbook walks you through how to get your big dog in line when Loyal's longevity drugs reach your vet, plus the ten things you can do today to add years on your own.
You have less time than you think.
A Chihuahua lives 16 years. A Great Dane lives 8. The difference isn't luck. It's a hormone called IGF-1 — Insulin-like Growth Factor-1 — and big dogs produce far too much of it.
IGF-1 is what makes a Mastiff puppy grow into a 140-pound adult in 18 months. It's also what accelerates their cellular aging, drives their cancer risk, and shortens their life. Small dogs have low IGF-1. They live nearly twice as long.
For the first time in veterinary history, there's a drug that lowers IGF-1 in big dogs to match small-dog levels. The FDA has created a new approval pathway for it. Clinical trials are underway. The waitlist is forming now.
Median lifespan estimates. A Great Dane owner loses a decade of dog every time, vs. a Chihuahua owner.
A biotech company called Loyal has spent nearly a decade developing three drugs — LOY-001, LOY-002, and LOY-003 — specifically to extend the lifespan of large and senior dogs. In 2023, the FDA did something it had never done before: it accepted Loyal's evidence that a drug could be developed and approved specifically to extend lifespan.
Getting your big dog in front of this — before the waitlist is years deep, before a vet who's never heard of Loyal shrugs you off, before the conditional-approval rollout means a pharmacy lottery — is not automatic. Three gaps every owner hits:
Most general-practice veterinarians have no training in longevity medicine. When you ask about LOY-001, you'll often get a blank stare — or worse, a dismissal. You need the right questions and the right vet.
If your dog qualifies for the clinical trial, your dog gets early access. But the enrollment process is clinic-by-clinic, criteria change quietly, and the wait for a screening appointment is weeks in most cities.
When LOY-002 reaches prescription availability, early supply will be constrained. Owners who understand the distribution model — which pharmacies, which vets, what insurance says — get their dogs dosed months before everyone else.
Nine modules. Roughly 20,000 words. Living document — updated monthly as Loyal, the FDA, and the clinical trials progress. Reviewed by a licensed veterinarian. Designed to be read in an afternoon and returned to often.
IGF-1, cellular aging, and the breed-by-breed lifespan data — in plain English.
What each drug does, which dog it's for, and where each one sits in the FDA pipeline today.
Interactive walkthrough — breed, age, weight, health. Clear yes/no/maybe with the reasoning.
Live directory of 70+ participating clinics, enrollment steps, what to expect, what it costs.
Notification signup, FDA approval tracker, expected pricing, and insurance landscape.
Scripts, questions, and how to find a vet who's actually up to date on longevity medicine.
Evidence-backed — weight, nutrition, bloodwork cadence, supplements that actually work.
A checklist built from your answers in Module 3 — what to do this week, this month, this year.
Rapamycin, senolytics, the Dog Aging Project — what's coming after Loyal.
These aren't Instagram tips. They're evidence-backed interventions from peer-reviewed veterinary literature. Implemented well, they add measurable years. Module 7 walks you through all ten, with the science, the how-to, and the vet questions for each.
The Purina Lifetime Study showed lean Labradors lived 1.8 years longer. Body condition score is the single biggest lever you control.
At 7+ for big breeds, catching kidney, liver, and thyroid drift early changes survival curves significantly.
One of the few supplements with actual randomized-trial evidence in dogs. Dose matters — most owners underdose.
Periodontal disease is a systemic inflammation driver that shortens lifespan. The fix is embarrassingly simple.
For big breeds, mobility loss cascades into every other system. Prevention starts before symptoms.
Not just walks — the right dose, the right type, the right recovery. Wrong exercise hurts senior dogs.
Over-vaccination and under-vaccination are both real. The right protocol for your dog's age and lifestyle.
The #1 killer of big dogs. New liquid biopsy options changed what's possible at home.
If you don't find this Playbook clearer and more useful than anything else you've read about canine longevity — you get every dollar back. No questions. No forms. No retention gauntlet. We publish our refund and cancellation rates publicly because we believe merchants who stand behind their work have nothing to hide.
Email us within 7 days of purchase and we'll refund the full $99. No questions, no justification needed.
The monthly subscription cancels in a single click from your account. No phone calls. No "are you sure?" dark patterns.
Our actual refund rate, refund response time, and cancellation rate are live on /transparency. Updated automatically.
Our refund policy is two sentences long. Our terms of service are written to be read, not to be hidden behind.
Buy the Playbook once. Optionally add monthly updates as Loyal, the FDA, and the clinical trials progress. Cancel the subscription anytime.
Both options include a no-questions 7-day money-back guarantee. If the Playbook doesn't give you a clearer path for your dog than anything else you've read, we'll refund you — and you keep what you've learned.
Big Dog Longevity is a family-run business. We've loved three big dogs over the years — Corona, Stella, and now Aspen, our two-year-old yellow Lab.
We built this Playbook because we've lost big dogs too early before — and Aspen is the one we're not willing to lose a day earlier than we have to. If you love a big dog, you know the math. We're going to help each other change it.
Meet the family →If we haven't answered yours, email us — we update this list when real questions come in.
No. Big Dog Longevity is educational information, reviewed by a licensed veterinarian, about emerging canine longevity research and how to navigate the healthcare system for your dog. We do not diagnose, prescribe, or replace your vet. Every protocol discussed is framed as a question to bring to your vet, not a directive.
Loyal (Cellular Longevity, Inc.) is a legitimate biotech, funded by Khosla Ventures and First Round Capital among others. In November 2023 the FDA formally accepted Loyal's evidence that a drug program could be approved specifically to extend canine lifespan — the first time that has happened in history. LOY-002 is the most advanced of their three drugs and is expected to reach prescription availability in late 2026 pending final manufacturing sign-off. Everything in the Playbook cites primary sources.
Absolutely, yes. Every fact in the Playbook is publicly available if you know where to look. We spent roughly 400 hours reading FDA filings, peer-reviewed papers, Loyal's public communications, and veterinary literature so you don't have to — and then worked with a licensed vet to synthesize it into a plain-English walkthrough you can read in an afternoon. If your time is worth more than $99, the math works. If not, the information is out there.
The Playbook becomes more valuable, not less. Conditional FDA approval means a constrained rollout — which vets can prescribe, which pharmacies carry it, how insurance treats it, what the real-world waitlist looks like. The $9/month subscription is built for this moment: when the first bottles ship, subscribers get the step-by-step distribution map within 48 hours.
It depends on the drug and the dog. LOY-002 is specifically designed for senior dogs 10+ years old (and 14+ lbs). LOY-001 is for large/giant dogs 7+ years old. Module 3 walks through candidacy case by case. And whether or not your dog qualifies for a longevity drug, Module 7 covers the ten evidence-backed things that extend life starting today — at any age.
7 days, no questions asked. Email us. Full refund. You keep whatever you've learned. The subscription cancels in one click from your account page.
No. We have no financial or commercial relationship with Loyal. We cite their public communications and FDA filings under fair use. If that ever changes, we'll disclose it prominently.
Every week you spend figuring this out alone is a week your dog doesn't get back. The Playbook is $99. Your dog is priceless. If we can save you one bad vet visit, one missed enrollment window, or one month of the wrong supplement stack — this pays for itself in an afternoon.
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