Cats Best OkO Plus Litter Review (2026)

Name: Cats Best OkO Plus Plant-Based Litter
Brand: Cats Best

Cats Best OkO Plus is made from pressed organic wood fibers with active capillary channels that absorb moisture and odors deep into the fiber structure. It's 100% biodegradable, flushable in most systems, and produces zero silica dust — the particulate health concern of clay litters.

Great

out of 10

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The full review

Odor Comparison vs. Clay

Wood fiber's capillary absorption draws moisture away from the surface faster than clay granules. The result: odor compounds remain locked in the fiber structure rather than off-gassing at the surface. In side-by-side 24-hour tests, OkO Plus produced measurably lower ammonia readings above the box vs. Arm & Hammer clay.

Transition Protocol

Mix 25% OkO Plus with 75% current litter for week 1. 50/50 for week 2. 75/25 for week 3. 100% OkO Plus from week 4. Gradual transition allows cats to adjust to texture and scent differences without box avoidance.

Quick verdict

What we love

✓100% biodegradable — compostable or flushable
✓Zero clay silica dust — relevant for households with asthma

Heads up

✕Transition required — some cats reject wood-based litters immediately
✕More expensive per volume than clay (lighter weight helps offset)
✕Flushable claim requires verification with local septic/sewer system

✓ Buy it if…

Cat owners seeking an eco-friendly, dust-free litter with strong odor control — especially for cat households with human allergy sensitivities to clay silica dust.

✕ Skip it if…

Cats with wood aversion — some cats reject plant-based litters initially.

Tucker's bottom line

The superior environmental choice that also outperforms clay on odor. The transition protocol is necessary — don't switch cold turkey.

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Common questions

Is it really flushable?

Yes, in most residential plumbing — the wood fiber degrades in water. However, never flush if you have a septic system; the fibers accumulate in septic tanks.

How often do I change the box?

Top up with fresh litter and scoop clumps daily. Full change needed every 6-8 weeks for one cat — less frequent than clay.

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This information is educational and not veterinary advice. Consult your veterinarian for your pet's individual health decisions.