Some dogs get more than 15 years with us.

Some only get 7 or 8.

They all deserve more time. What if we could give it to them?

Loyal Life and Size Comparison White Fill Smaller Chihuahua


A clinical-stage veterinary medicine company.

We’re developing drugs intended to delay and reverse aging in dogs, because we believe they deserve as many happy years as we can give them.

Join the Loyal Pack

We need dog owners' help to make this happen.

Sign up for updates on access to drug trials, feedback opportunities and early updates.

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Slow aging, delay diseases.

By developing drugs with the potential to slow the aging process, we aim to delay or prevent age-related diseases like cancer and dementia. Our goal is to give our dogs more healthy and happy years.

See the science behind Loyal

Our Mission

To improve your dog's healthspan (quality of life) and lifespan (years of life).

Loyal is backed by decades of research on the biology of aging.

We’re a team of clinicians, scientists, and dog lovers who believe our best friends deserve more time.

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