Daily Supplement, clinically proven to support cognitive function, vitality and healthy aging in dogs.

More Life in Your Dog,
More Dog in Your Life

Anyone who has a dog knows: dogs are good for us. They help keep us healthy and feeling younger – and now we can do the same for them.

Leap Years® is changing how we care for adult dogs because it doesn’t just address conditions related to aging, it impacts the underlying causes of aging itself.

Clinical Trial Publication

Learn more about the double blind, placebo controlled clinical trial of Leap Years, conducted at North Carolina State University College of Veterinary Medicine.

May, 2024

Clinically Proven

Proven in a double-blind, placebo controlled clinical trial to support cognition, vitality and activity in adult dogs.

Easy to Administer

Dogs love the beef flavor of our highly palatable, soft, and chewy daily supplement.
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The first soft chew supplement for dogs that addresses the root causes of aging, starting at the cellular level.


Veterinarian-formulated, monthly regimen to optimize cellular health.

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Click here for a custom recommendation

As Seen In

More Vitality

Helps to strengthen muscle, enhance movement and restore vigor.

More Engagement

Limits cognitive decline and increases engagement with your dog.

More Life

Better vitality and mental fitness provide more enjoyment of life together.
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How Leap Years Works

Leap Years is shifting the paradigm of how dogs age. It is a two-part cellular health system that slows the effects of aging and helps to extend the health and vitality of our best friends.

Over time, your dog’s NAD+ levels naturally decline, impacting their cells’ ability to function, repair, and replace themselves properly. This leads to diseases and the breakdown of different functions, physical and mental.

Leap Years is the only dual action dog supplement system that targets aging at the source – the cellular level. Our great tasting soft chews are formulated with LY-D6™ & LY-D2™, a proprietary combination of an NAD+ Booster derived from nicotinamide (Vitamin B) and a senolytic antioxidant found in fruits and vegetables. Together they work at the cellular level to boost NAD+ levels and reduce senescent (damaged) cells in aging dogs, restoring mobility, heart health and brain function.

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For Veterinary Professionals

Be a leader in emerging solutions for adult dogs. Start addressing the effects of aging today.

Leap Years® has been a game-changing supplement for my patients. I’ve observed reversion to puppy-like playfulness, restoration of ability to sleep through the night, as well as improved appetite in a 13.5 year-old Spaniel. read more

Heather Oxford DVM, MPH, CVA, CCRT
California | USA

Dog Aging News

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Aging is caused by genetic, environmental and lifestyle factors. The way to slow aging varies from dog to dog because it depends on individual health parameters. You can slow the aging process in your dog through addressing medical needs, lifestyle changes, supplements and providing a rich environment for engagement.

Healthy aging means that your dog stays strong and flexible with age. Your dog feels vital, stays cognitively engaged, and doesn’t suffer from age-related diseases and decline. Healthy aging depends on specific genes, epigenetics, blood chemistry and more. Just like for humans, regular exercise, healthy diet, and veterinary checkups, including bloodwork and discussion of goals for your dog go a long way to support healthy aging.

Puppies and young dogs (less than 50% of their expected lifespan based on breed) do not need Leap Years. Young dogs have adequate stores of NAD+ and would not have many senescent cells unless there was concomitant inflammatory disease. A dog would not need Leap Years until adult maturity. NAD+ concentrations start to wane in middle age. Specific diseases should be discussed with your veterinarian.

No. Leap Years has been tested in dogs only and is not labeled for human use. Please keep the soft chews out of reach of children.

Please use our CONTACT US form, or if your question is urgent, please call us at +1 888- 850-1930 Monday to Friday 9 am – 6 pm ET.

For immediate attention or medical emergencies please contact your local veterinarian.

Have more questions about Leap Years?
Visit our full FAQs page.
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