Daily Cellular Health System
More Life in Your Dog, More Dog in Your Life.
A once-a-day chew that supports cognitive function in aging dogs - studied in dogs, not borrowed from human research.
- Tested in a randomized, double-blind, placebo-controlled trial
- One jar is a full month at your dog's weight. No measuring, no math.
The formula
Two chews, one simple month
Every jar holds two golden starter chews plus a month of brown daily chews. Start the month with the golden ones, then give the brown ones every day after.
Given for the first two days of the monthly cycle. Formulated with an optimal concentration of senolytic and NAD+ precursor to aid in the body’s clearance of old cells and help maintain healthy cells.
Given daily for the remainder of the month. Formulated with a clinical-grade NAD+ precursor to continuously elevate cellular energy, supporting ongoing daily stamina and mental focus.
Why this one
The Leap Years difference
Most senior dog supplements borrow their evidence from human research. This one was tested in dogs, and we only say what the study supports.
Aging isn't one body part
A senior dog isn't a joint problem or a coat problem. Targeting a single part means chasing what you can see, one part at a time.
Every part runs on the same fuel
Cells convert food into ATP - the energy that everything else depends on. NAD+ is the molecule that makes that conversion possible.
That's the level we work at
Leap Years supplies an NAD+ precursor: the building block a cell uses to make its own. Not a fix applied to a symptom, a supply given to the system.
Which is why it's daily
A supply isn't a switch. It's one chew a day, and we ask for three months - the same window the clinical trial ran.
Cognition was the endpoint that reached statistical significance in the published trial. We don't claim outcomes the study didn't measure.
How it works over time
Cellular health is a regimen, not a quick fix
Leap Years works at the cellular level, so it isn't something you judge in week one. The clinical trial ran for three months before it measured a result — that's the window we ask for.
Building the habit
- Most dogs take the chew as a treat
- Start with the golden chews on days 1–2
- Your job this month is simply not missing days
Staying consistent
- Nothing to do differently
- Keep the daily routine going
- One jar covers a full month at your dog's dose
The trial window
- This is the point at which the study measured its result
- If you're going to form a view, form it here
Grounded in science
Why cellular health, and why every day
NAD+ is a molecule every cell uses to turn food into ATP (usable energy). Levels of it are widely reported to fall as dogs get older, and that decline is one of the most studied ideas in the biology of aging.
A precursor is simply a building block the body uses to make its own NAD+. You aren't giving your dog NAD+; you're giving the raw material and letting the body do the work. That's why it's a daily chew rather than a one-off.
Simplified illustration. The chew supplies the building block; the cell does the rest.
Educational summary of published NAD+ research.
NAD+ levels decline as dogs age
— Illustrative - how NAD+ decline is described in the research
Illustrative only. Not measured in the Leap Years clinical trial, and not a claim about this product.
Finding your dog's size
A simple monthly routine based on weight.
The dose is set by weight. Give it in the morning, with or without food.
Between two sizes? Go by current weight, not breed, and choose the smaller band if your dog sits on a boundary.
From the pack