Whisker9 Core
Daily longevity support
Built for cats.
Designed like a flagship formula.
Whisker9 Core pairs the landmark 9-year Cupp feeding trial with an 11-ingredient formula built for energy support, resilience, and a realistic once-daily routine.
Selected plan
Annual membership
$109/mo
Billed yearly at $1,308
Order requests open directly by email while native checkout is being finished.
Why it exists
Not another
generic pet supplement.
Whisker9 Core is designed around a narrower brief than most pet supplements: start with the strongest published longevity evidence available in cats, keep the label fully inspectable, and make the daily routine simple enough to repeat for years.
Editorial thesis
Evidence first.
Full label.
Daily compliance.
Evidence-first longevity
Starts from the strongest long-horizon feline feeding data rather than generic pet-supplement marketing.
Full-label transparency
Every active dose is disclosed so the formula can be evaluated ingredient by ingredient.
Built for daily compliance
Powder format, measured scoop, and wet-food routine are designed to work in a real cat household.
Formula architecture
11 disclosed actives.
No proprietary blends.
The primary actives do the heavy lifting, while the supporting stack is grouped around antioxidant protection, mitochondrial support, gut balance, and long-horizon daily use.
See every ingredient and evidence level75 mg
NR / Niagen®
Cellular energy and DNA repair
A clinically studied NAD+ precursor chosen to anchor the formula around long-term cellular resilience.
250 mg
Taurine
Heart and retinal support
An essential amino acid cats cannot adequately synthesize on their own.
150 mg
EPA + DHA
Kidney and cognitive support
Algal omega-3s selected for purity and used to support aging-related organ stress.
30 IU
Vitamin E
Directly supported by the Cupp study
Included because the landmark longevity trial supports antioxidant inclusion directly.
Antioxidant layer
Vitamin C, Vitamin E, Beta-carotene, Quercetin
Mitochondrial layer
NR / Niagen®, CoQ10, NAC
Gut and cognition layer
Chicory Root, B-Complex, EPA + DHA, Taurine
Evidence
Built from the only lifetime longevity study published in cats.
The Cupp feeding trials followed 90 cats for more than 9 years and reported a 40% mortality reduction in the supplemented group. That is why Whisker9 is built around outcome data first, and ingredient storytelling second.
Landmark feline dataset
The Cupp feeding trials remain the longest controlled nutritional longevity study published in cats.
Outcome over theory
The core proof is not a mechanistic claim alone. It is survival, lean-mass, and aging-outcome data.
Cat-specific formulation logic
The stack avoids generic pet assumptions and stays grounded in feline physiology and known risk exclusions.
Transparency by design
The formula is designed to be inspected, challenged, and understood rather than hidden inside a proprietary blend.
Adapted from Cupp et al. (2006, 2008, 2010). Kaplan-Meier survival estimate, n=90, with reported significance of p=0.0089.
Daily routine
The plan is still simple.
The product experience should feel premium, but the daily habit should feel simple: one scoop, one bowl, one repeatable routine.
Dosing notes
Scoop
Open the jar and use the included metal scoop to portion the powder cleanly.
Dose
Match the serving to your cat’s weight tier so the routine stays consistent and repeatable.
Mix
Blend into wet food once daily for a simple habit that does not require a separate ritual.
How it fits the household
Meal context
Wet-food routine
Built to disappear into an existing feeding moment instead of creating a separate ritual.
Serving cadence
Once daily
The habit is meant to be consistent enough for long-horizon use, not a complicated protocol.
Replenishment
30-day cycle
The box, scoop, and plan options all ladder back to a simple monthly rhythm.
Purchase questions
The confidence layer.
A premium product page should answer the practical questions clearly: how the plans work, how long the supply lasts, how shipping behaves, and how risk is handled.
The annual plan is priced at an equivalent monthly rate of $109 and billed yearly. It is structured for households that want uninterrupted 30-day shipments without re-order friction.
Each box is structured as a 30-day supply when used once daily according to the weight-based serving guidance.
Orders include free U.S. shipping, typically leave the warehouse within one business day, and usually arrive within 4 to 5 business days.
First-time orders are covered by a 30-day money-back guarantee so you can evaluate fit without taking on long-term risk.
The formula is built around a once-daily wet-food routine, so the intended experience is mixability and compliance rather than a separate pill-like ritual.
The formulation philosophy is to stay compatible with standard veterinary care, but medication-specific questions should still be reviewed with a veterinarian who knows your cat.
Choose your plan
Pick the cadence that fits your household.
The buy box already handles plan selection. The closing section should just help you compare the tradeoff one last time and jump back into the decision cleanly.
Best value
Save $360 / yearAnnual membership
Billed yearly at $1,308
Locks in the strongest effective rate for a full year of daily use.
Billed yearly
Most flexible
One-time purchase
Single shipment · 30-day supply
Start with one box and evaluate fit before committing to a longer plan.
30-day supply
Annual membership
$109/mo·Billed yearly