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Plastic-Free Rating
Pet Care
Pet Care·World's Best Cat Litter

Original Unscented Cat Litter

A
PFR Grade
Excellent — minimal plastic, transparent materials, safe for daily use
Made from whole-kernel corn — no synthetic chemicals, no fragrances, no clumping agents. Biodegradable and flushable. No silica dust (a respiratory concern in conventional clay litters).
PFR Approved

Cat litter made from whole-kernel corn. No synthetic chemicals, no fragrances, no silica dust. Biodegradable and flushable.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials
9
Packaging
6
Transparency
8
Durability
7

Brands cannot pay for higher scores. If you buy through our link, we may earn a small commission at no extra cost to you.

Last updated: April 6, 2026

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Moderate Exposure Risk — Why This Product Category Matters

Pets are even more vulnerable to chemical exposure than humans. Dogs and cats spend more time on floors, groom themselves (ingesting whatever is on their fur), and have faster metabolisms that concentrate toxins. Conventional pet products often contain the same toxic chemicals as human products, with even less regulatory oversight.

Why We Recommend This Product

World's Best Cat Litter's corn-based formula eliminates the silica dust concern of conventional clay litters (silica dust is a respiratory hazard for both cats and humans). No synthetic chemicals, no fragrances.

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