Your Next Dog May Live Longer
A new pill developed by Celine Halioua's company Loyal may soon extend the lifespan of dogs, marking a potential breakthrough in longevity medicine. The drug, deemed likely to be effective by the FDA in 2025, could pave the way for similar advancements in human life extension. Halioua's work is part of a growing industry attracting billions in investment, focused on combating aging through scientific innovation.
- ▪Celine Halioua founded the company Loyal in 2019 to develop longevity treatments for dogs.
- ▪In February 2025, the FDA deemed Loyal's dog longevity pill likely to be effective.
- ▪Investors have poured over $10 billion into life-extension companies in the past five years.
- ▪Jeff Bezos and Sam Altman have funded companies like Altos and Retro Biosciences to explore epigenetic anti-aging techniques.
- ▪Halioua worked with Laura Deming, who co-founded a major venture fund for longevity research.
Opening excerpt (first ~120 words) tap to expand
ScienceYour Next Dog May Live LongerA new pill could soon extend dogs’ lives. How will that change our relationship with our pets?By Ross AndersenIllustration by Gaia AlariMay 2, 2026, 8 AM ET ShareSave One day last November, my dog, Forrest, sat on the cold marble steps of the Smithsonian’s natural-history museum in Washington, D.C., ready to meet Celine Halioua, a woman who may one day add a tail-wagging year or so to his life, and also the lives of millions of other dogs. In 2019, Halioua founded a company called Loyal, and in February 2025, a pill that she developed for dogs was deemed likely to be effective by the FDA.
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