Science-Backed Cat Longevity
Give them
more years.
The only cat supplement built on a 9-year, 90-cat clinical feeding trial. One scoop a day.
The Problem
Your cat is aging faster than you think.
Hidden decline
Cats are masters at hiding decline.
of cats over 10 live with chronic kidney disease
of cats over 15 are affected
of cats over 11 show cognitive decline
By the time you notice changes in energy, appetite, or coat quality, cellular aging has often been accelerating for years. Heart disease is the second leading killer in cats, and most supplements on the market still have zero clinical evidence in actual cats.
The Evidence
Built on the only lifetime longevity study ever conducted in cats.
The Cupp lifetime feeding trials followed 90 cats for over 9 years at the Purina Pet Care Center — the longest controlled nutritional longevity study in feline history.
Cats receiving the supplemented diet showed 40% lower mortality (p = 0.0089), lived approximately one year longer, and maintained significantly more lean body mass as they aged.
Adapted from Cupp et al. (2006, 2008, 2010). Kaplan-Meier survival estimate, n=90.
How It Works
One scoop.
Every day.
That's it.
Sprinkle
One scoop on wet food. Sized for your cat's weight.
Eat
Meat-based flavor system. Your cat eats it willingly.
Thrive
11 compounds support cellular health from within, daily.
Full Transparency
Every ingredient.
Every dose.
No proprietary blends. No filler. No hiding behind “other ingredients.”
NAD+ precursor. Cellular energy and DNA repair. The cornerstone ingredient — NAD+ levels decline dramatically with age, impairing mitochondrial function, DNA repair, and cellular metabolism.
Essential amino acid for cats. Heart and retinal protection. Unlike dogs, cats cannot synthesize adequate taurine and require dietary supplementation.
Algal omega-3 fatty acids. Kidney and brain support. Sourced from algae rather than fish oil for purity and sustainability.
Antioxidant proven in the 9-year Cupp feeding trial. Protects cell membranes from oxidative damage.
Calcium ascorbate form. Synergistic with Vitamin E for enhanced antioxidant protection.
Safe provitamin A. Proven in the Cupp feeding trial to support immune function.
Prebiotic FOS for gut health. Proven in the Cupp feeding trial to support beneficial gut bacteria.
Anti-inflammatory flavonoid. Protects NR efficacy by inhibiting CD38, an enzyme that degrades NAD+.
Ubiquinone form. Essential for mitochondrial electron transport chain and cellular energy production.
N-Acetyl Cysteine — glutathione precursor. Supports liver detoxification and cellular antioxidant defenses.
B1, B6, B12, and Folate. Supports cognitive function, nerve health, and energy metabolism.
U.S. Launch Reset
The rebuilt storefront is being aligned around United States defaults and live checkout in USD. The old theme and legacy catalog are being cleared out before relaunch.
What cat parents are saying
After 8 weeks on Whisker9, my vet noticed improved kidney values in Luna's bloodwork. She's 14 and acting like she's 10.
Common questions
Every ingredient has been reviewed for feline safety. We exclude all known toxic substances — alpha-lipoic acid, xylitol, essential oils — and use forms specifically chosen for cat physiology.
The powder uses a meat-based palatant system optimized for feline acceptance. Mix one scoop into wet food. Most cats eat it without noticing.
Coat and energy improvements are commonly reported within 4–8 weeks. The deeper cellular benefits build over months of consistent use.
Whisker9 is the only cat supplement built on the Cupp lifetime feeding trial — a 9-year, 90-cat controlled study showing 40% lower mortality. We publish every ingredient and every dose.
Nicotinamide riboside is a NAD+ precursor backed by 500+ published studies. NAD+ declines with aging and is essential for DNA repair and cellular energy. Niagen® is the clinically validated form from ChromaDex.
The legacy catalog is being removed while the storefront is rebuilt around a Hydrogen-first, US-market launch. Use the launch updates link and we will announce when checkout goes live again.
Yes. While benefits are most pronounced for cats 7+, taurine, omega-3s, and antioxidants support cellular health at any age.
The included scoop has markings for three weight tiers: under 8 lbs, 8–12 lbs, and over 12 lbs.
