Shelter donations with every purchase.

What you’ll learn

Rate of Aging

Understand how your dog’s health compares to our reference database, which represents all breeds, sizes and health statuses, to give you a relative aging score and rate. This metric reveals the pace of your dog’s aging and gives your dog a health grade, which is then broken down into a detailed report, helping you identify areas of improvement while also celebrating their strengths.

Biological Age

Go beyond calendar years—WoofSpan calculates your dog’s biological age, a health-adjusted measure reported as a healthspan score that reflects their overall wellness and longevity potential. Tracking biological age over time allows you to see the impact of care and interventions, giving you the tools to promote a longer, healthier life.

Custom Action Plans

Take the guesswork out of dog care. Each WoofSpan report includes a personalized care plan tailored to your dog’s unique needs, including risk assessments for conditions like oral disease, cancer, and joint health. These actionable insights empower you to make proactive, data-driven decisions to improve your dog’s health and well-being.

How it works

1. Swab

Gently swab the inside of your dog’s cheek pouch and under the tongue to collect saliva for at least 60 seconds. The more slobber the better!

2. Activate & mail

Activate your kit online using your custom activation code found on the back of your WoofAge bag. After sampling, drop off the sample at any USPS location using the included prepaid mailer. Shipping is FREE!

3. Results within 4-5 weeks

Our team will take care of the rest and notify you by email when the results are ready. Login to your account to follow along and track your samples progress!

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Aging 101 Articles

How old is your dog in human years, really?

How old is your dog in human years, really?

Discover why the "7 dog years equals 1 human year" rule is a myth and, more importantly, how we can accurately measure how dogs truly age.

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The science behind WoofAge

The science behind WoofAge

In the United States alone, more than two million dogs are adopted every year, often with little to no information about their age

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Caring for your dog at every stage of life

Caring for your dog at every stage of life

Our dogs give us love, loyalty, and joy at every stage of their lives. But as they grow from curious pups to wise seniors, their needs change significantly.

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FAQs

What is DNA methylation?

DNA methylation is an epigenetic marker—meaning it affects gene activity without changing the underlying genetic code. Think of it like a dimmer switch: methylation can turn genes up, down, or off, impacting everything from growth to health. This chemical modification can be influenced by factors like age, environment, lifestyle, and even stress. Because DNA methylation patterns shift predictably over time, scientists can measure these changes to estimate chronological and biological age accurately. This advanced science, also coined as “epigenetic clocks,” is proven across species, helping us understand aging on a whole new level for dogs and humans alike. Woofgenix is a pioneer in canine epigenetics, building novel computational platforms to better model and assay canine methylation states.

What will WoofSpan tell me?

With WoofSpan, you'll receive a detailed report that provides four key insights:

  • Aging Rate and Age Grade: WoofSpan assigns your dog an overall aging rate, summarizing how their health and aging metrics compare to other dogs of similar breed and size. This grade offers a snapshot of their aging process and highlights areas of focus for improvement.
  • Biological Age: WoofSpan calculates your dog’s health-adjusted age, offering a deeper understanding of their overall health compared to their calendar years. This metric helps you see how well your dog is aging.
  • Aging Risk Assessment: Your report includes an evaluation of your dog’s risk for common conditions such as oral disease, cancer, and size-related health concerns. These insights highlight areas where proactive care can make the biggest difference.
  • Custom Care Plan: Tailored specifically to your dog’s breed, size, and health status, WoofSpan provides actionable care recommendations designed to slow aging and improve healthspan.

WoofSpan empowers you to track your dog’s health over time, helping you make informed, proactive decisions to ensure your dog lives a longer, healthier life.

How is WoofSpan different from WoofAge?

While both WoofSpan and WoofAge use cutting-edge DNA methylation science, they focus on different aspects of your dog’s health:

  • WoofAge: Designed to determine your dog’s calendar age, estimated birthday, and life stage with exceptional accuracy. WoofAge helps you understand where your dog is in their life journey and provides a care guide tailored to their life stage and human age equivalent.
  • WoofSpan: Goes beyond age to assess your dog’s biological age, healthspan, and aging risk. WoofSpan delivers insights into your dog’s overall health, evaluates risks for conditions like oral disease and cancer, and offers personalized care plans to help improve their health and slow aging.

In short, WoofAge tells you how old your dog is, while WoofSpan tells you how well your dog is aging and how to optimize their health over time. Together, they provide a comprehensive picture of your dog’s age, health, and longevity.

How long does it take for my results to come back?

The Woofgenix team is fast, but unfortunately DNA methylation analysis is not Amazon fast quite yet. From the time our lab receives your sample you can expect a 4-5 week turnaround time, which includes DNA extraction, DNA methylation sequencing, WoofSpan analysis and quality control. If there are any issues with your sample our team will reach out to you with the email on file.

When is WoofSpan available?

The Woofgenix team is working hard to finalize our models. To ensure the highest prediction power we are conducting additional validation studies, which will be completed soon. We are limiting the initial availability of WoofSpan, so if you want to secure a spot in line pre-order today! We estimate the first tests will ship sometime early to mid Q1 2025.

How will my dog contribute to dog aging research?

Currently, canine aging research is in its infancy stages, just now getting off the ground. Unfortunately, we know very little about why certain dogs live so much longer, or shorter, than their peers. We believe part of the answer lies in your dog's DNA. Relatively few dogs have been sequenced and far fewer have had their epigenetic states or DNA methylation analyzed. Stress and age traverses the epigenome, which could give us predictive clues into how we can extend the lives of our best friends. With every sample sequenced, the Woofgenix team gets one step closer to cracking code to dog longevity. Our team routinely publishes, presents at conferences and collaborates with leading academics to further our mission of helping dogs live healthier, longer lives.

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