For dogs 2+ · while they're still unstoppable

Keep them young
for longer.

Aging is silent — right up until it isn't. Give your dog the three daily supplements that support a longer, stronger prime, started while they're still in it.

See the three →

NASC-standard · Made in the USA · 60-day money-back promise

“Their best years
start now.”

Age 2+ the right time to start is early

John and Claire, founders of Good Years Co., with their two dogs

Why we started

“It started with our own two dogs. We went looking for something to help them age well — and found thirty bottles of hype and no straight answers. So we built the shelf we wished existed: three things with real science behind them, meant to be started early, while our dogs are still young. That's the whole company.”

— John & ClaireFounders of Good Years Co. · Dog parents first.

3The whole shelf

Our conviction

Most brands sell thirty.
We sell three.

Because three are all we'd put in our own dogs' bowls. Started young and given daily, they support the three systems that quietly decide how well a dog ages — long before any of it shows on the outside.

✨

NAD⁺ / NR

Cellular vitality

Cellular energy and repair naturally decline with age. An NR (nicotinamide riboside) chew supports the machinery that keeps a young dog running strong.

🦴

EPA / DHA

Mobility & mind

Omega-3 fatty acids support joints, coat, heart and cognition — the reserves you want built up before wear ever sets in.

🌿

Bacillus spores

Gut & immunity

A shelf-stable spore probiotic supports digestion and a resilient immune system — the foundation everything else is built on.

The science

Why these ingredients — not thirty others.

Every active earns its place with a real mechanism behind it. Here's what each one is, what it does, and why it's in the formula. No mystery blends, no filler science.

Chew 01

Longevity Chew — cellular vitality

What it is

Nicotinamide Riboside (NR)

A precursor to NAD⁺ — a coenzyme in every cell that fuels energy production and DNA repair. We use the NR form (not NMN), which is compliant and well-studied.

What it does

Replenishes NAD⁺

NAD⁺ levels fall as a dog ages, and cells lose efficiency. NR is intended to help maintain those levels, supporting the cellular energy and repair behind a bright, active dog.

Why it's in the formula

Paired antioxidants

We add quercetin and CoQ10 to support the same cellular machinery — antioxidant defence and mitochondrial energy — so the NR isn't working alone.

Chew 02

Omega-3 — mobility & mind

What it is

EPA + DHA fatty acids

The two omega-3s dogs can't make enough of on their own, sourced from fish or algae oil and built into a chew.

What it does

Supports joints, coat & brain

EPA and DHA support healthy joints and mobility, skin and coat condition, heart health, and cognitive function — reserves best built up before wear shows.

Why it's in the formula

Stabilised for freshness

Omega-3 oxidises easily, so it's paired with mixed tocopherols (vitamin E) and rosemary to keep it fresh — potency you can actually rely on.

Chew 03

Spore Probiotic — gut & immunity

What it is

Bacillus spores

Spore-forming strains (B. coagulans, B. subtilis) that survive heat, shelf storage and stomach acid — no refrigeration, no cold chain.

What it does

Supports the microbiome

A healthy gut underpins digestion, nutrient absorption and a big share of immune function. These strains are intended to support a balanced, resilient microbiome.

Why it's in the formula

Fed by prebiotics

We include inulin and pumpkin as prebiotic fibre — food for the probiotics — so the good bacteria have what they need to do their job.

🧪 Full ingredient panels + Certificate of Analysis at launch 🌿 Formulated to NASC standards 🇺🇸 Made in the USA

This is what we're protecting

The good years, in motion.

Not stock-photo dogs. The everyday, unremarkable, irreplaceable stuff — the reason any of this matters.

Still got the zoomies

Every day like it's the first

Years of good walks ahead

The lineup

Three products. One shelf.

Swipe through — the whole Good Years family, up close.

The Longevity Chew

Omega-3

Spore Probiotic

← swipe / drag to see more →

Serving guide

How much does your dog need?

Every product comes as a 60-serving bag. Daily amount is simple — it scales with your dog's weight. One bag is about a month for a medium dog.

Dog weight	Daily serving	A 60-count bag lasts
Up to 25 lb	1 / day	~60 days
26–50 lb	2 / day	~30 days
51–90 lb	3 / day	~20 days
90 lb +	4 / day	~15 days

Same simple weight bands across all three products · always follow the exact serving printed on your pack

The three · & the system

Start one. Or start the whole routine.

Each works alone. Together they're the daily foundation we built the company around — priced so the bundle is the only sensible choice.

The no-brainer · save $44

The Good Years System

All three, every day — cellular vitality, mobility and gut health. Three 60-count bags · about a month for a medium dog.

$88$132

You save $44 vs buying separately

🚚 Free shipping↩️ Money-back guarantee🔒 Cancel anytime

three that earn
their place

60day promise

Love it, or your money back.

Give it 60 days. If you don't see your dog moving easier, playing longer, or just being more themselves — email us and we'll refund every cent. No forms, no return shipping, no catch. The risk is entirely ours.

Why owners choose Good Years

3 productsthe whole shelf · zero filler

40% off your first order

Applied instantly when you join the list — on any product or the full system.

60-day money-back promise

Give it two months. If it's not right for your dog, we refund every cent.

Made honestly

NASC-standard, made in the USA, batch-tested. Only what earns its place.

Straight answers

My dog is young and healthy — why start now?

Because healthspan is built, not rescued. What you give a dog in their prime shapes how well they age later. Starting at 2 isn't early — it's on time.

Will this make my dog live longer?

We won't promise that — no honest brand can. We build for healthspan: supporting more good, active, comfortable years. Better odds of a great old age, not a guarantee.

What's actually in it?

Three evidence-backed actives: an NR (NAD⁺) chew, omega-3 EPA/DHA, and a spore probiotic. Full panels on every product, made to NASC standards in the USA, batch-tested. No fillers, no mystery blends.

What if it doesn't work for my dog?

60-day money-back promise. Email us, keep the bottles, get refunded. If we're wrong, that's on us.

Is it safe with medication?

Built to NASC standards, but every dog is different. If yours is on medication or has a condition, check with your vet first.

Keep them young
for longer.