More time
with the dogs
we love

Anna

Age 13

OUR APPROACH

We’re helping dogs like yours live longer and stay healthier as they age.

Our products focus on preventive care, addressing the underlying causes of a range of age‑associated diseases to delay their onset and reduce their impact.

Harley

Age 2

PRODUCTS IN DEVELOPMENT

Extending healthy lifespan

LOY‑002

for senior dogs

Target audience

Dogs age 10 and older, weighing at least 14 lb

Focused on

Correcting metabolic dysfunction

Projected availability

2025

LOY‑001, LOY‑003

for large dogs

Target audience

Dogs age 7 and older, weighing at least 40 lb

Focused on

Correcting overexpression of IGF-1 and growth hormone (GH) in large dogs post-maturity

Projected availability

2027

Explore our products

Oliver

Age 11

BIG NEWS FOR BIG DOGS

A groundbreaking first in longevity science — the FDA has accepted our Reasonable Expectation of Effectiveness application for LOY‑001.

Read our announcement

Blue

Age 13

Meet Boo — the first dog dosed in our LOY-002 pivotal study for extending healthy lifespan in dogs of nearly all sizes

Announcing our partnership with Crinetics Pharmaceuticals

Loyal’s latest milestone: the first longevity clinical study design supported by the FDA

Sebastian

Age 12

STAY — our new clinical study for LOY‑002

We’ve launched a major new clinical study for LOY‑002, our drug to extend lifespan and maintain quality of life in senior dogs of nearly all sizes. We’re enrolling 1,000 senior dogs at 70 veterinary clinics across the country. See if your dog qualifies to participate.

Learn more

Veterinary professionals

Explore what our longevity therapies will mean for your patients and your practice.

Learn more