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Daily single-serve sachets

Give them more years.

Built on a 9-year, 90-cat clinical feeding trial with 40% lower mortality. Start with the 90-day subscription starter.

Start the 90-day subscriptionSee how to use it
30 daily sachets per boxMix into wet food once dailyEvery active disclosed
0+years

in a controlled feline feeding trial

0cats

followed across the study period

0%

lower mortality in the supplemented group

0actives

fully disclosed on the label

Why early support matters

Cats are exceptionally good at hiding change. By the time you notice differences in appetite, energy, coat quality, or mobility, age-related stress has often been building quietly for years.

Hard to spot early

Cats are masters at masking decline, which makes earlier daily support easier than waiting for obvious problems.

40%

of cats over 10 live with chronic kidney disease

80%

of cats over 15 are affected

50%+

of cats over 11 show cognitive decline

Senior tabby cat with greyed muzzle

Kidney, heart, and cognitive changes rarely arrive all at once. The goal is to support long-term resilience before visible decline becomes the only signal.

What makes Whisker9 different

Whisker9 is built like a feline longevity product first, not a generic pet supplement with cat branding layered on top.

The formula starts with long-term cat data, publishes the full label, and fits into a daily routine most cat households can actually keep.

Read the science

01

Built on cat data

Grounded in long-term feline research, not backfilled from generic wellness trends.

02

Fully disclosed formula

Every active. Every dose. No proprietary blend language.

03

Easy daily routine

One pre-portioned sachet mixed into wet food once daily.

How to use it

Designed for the feeding routine most cat households already have: wet food once a day, with one pre-portioned sachet and no extra measuring.

01

Open

Tear one daily single-serve sachet from the box.

02

Mix

Mix one sachet into wet food once daily.

03

Repeat

Each order includes pre-portioned daily sachets to keep the habit simple.

Questions, answered

Straight answers on safety, routine, what comes in the box, and why the formula is built the way it is.

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 sachet into wet food once daily. Most cats eat it without noticing.

Mix one pre-portioned sachet into wet food once daily. The format is designed to fit into a routine most cat households already have.

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.

A daily nutrition routine is easiest to judge over consistent use. A 90-day stretch is a practical benchmark, while many cat parents notice coat or energy changes sooner.

No. It is especially relevant for aging support, but taurine, omega-3s, and antioxidant coverage can support cats before senior years too.

Each box includes 30 daily sachets for a simple once-daily wet-food routine.

Start with 90 days

A daily routine is easiest to judge when you give it real consistency. Start with your first box, keep the habit simple, and evaluate it over a full 90-day stretch.

30 daily sachets per boxMix into wet food once dailyEvery active disclosed
Start the 90-day subscriptionSee full formula