How to Choose Sustainable Compostable Cat Litter in 2025

Making eco-friendly choices has become a big priority for many of us, and that includes the products we buy for our pets.

With so many brands claiming to be "green," it can be tough to know which ones are truly sustainable.

When it comes to compostable cat litter, knowing what to look for is key to making a truly informed choice.

This guide will walk you through the most important things to consider when you shop for sustainable litter.

We'll show you how to spot a truly green brand and avoid the common traps of "greenwashing."

A litter being "compostable" is a great start, but it's only one piece of the puzzle.

True sustainability looks at a product's entire life from how it is made to how it is disposed of.

Source of Materials: A truly sustainable litter is made from renewable materials. This can include byproducts from other industries, such as reclaimed sawdust from lumber mills or wheat that is a byproduct of food production.
Reduced Carbon Footprint: Sustainable litters are often much lighter than traditional clay, which means less fuel is needed to ship them. A lighter bag of litter also makes your life easier when you have to carry it from the store to your home.
Healthy for the Planet and Your Cat: Choosing a sustainable litter means you are choosing a product that is free from harsh chemicals and is better for both the environment and your cat's health.

When you're ready to make a sustainable choice, here are the most important features to look for on the package or website.

Certifications and Seals

These are your best proof that a brand is truly committed to sustainability.

USDA Certified Biobased: This seal tells you that the product is made from a certain percentage of renewable, plant-based materials. The higher the percentage, the better.
FSC (Forest Stewardship Council) Certified: If you're buying a wood-based litter, look for this seal. It guarantees that the wood comes from responsibly managed forests.
Certified B Corporation: This is a big one. It means the entire company has met high standards for social and environmental performance.

Check the ingredients list and look for natural, plant-based materials.

Renewable Resources: The best litters are made from corn, wheat, wood, or recycled paper.
No Additives: Avoid litters that have added chemicals, fragrances, or synthetic dyes. A truly sustainable litter will rely on the natural power of the materials for odor control.

Not every "green" claim is true. Here are some red flags that could mean a company is "greenwashing."

Vague Buzzwords: Be careful of phrases like "eco-friendly," "natural," or "green" without any specific proof. Look for details on how the product is made and what certifications it has.
Misleading Compost Claims: Some litters are labeled "compostable," but they might require a special, high-heat industrial compost facility to break down. If you plan to compost at home, make sure the packaging says it is safe for backyard composting.
Packaging That Doesn't Match: If the litter is "eco-friendly" but comes in a non-recyclable plastic bag, that’s a red flag. A truly sustainable brand will use recyclable or biodegradable packaging.

Making the final choice is easy with these simple tips.

Read the Reviews: Check what other cat owners are saying. A great review from a fellow pet parent is a powerful tool.
Test a Small Bag First: Cats can be picky! Before you buy a big bag, get a small one to see if your cat likes the new texture.
Check a Brand’s Website: A transparent company will tell you all about its mission, sourcing, and sustainability efforts. If you can't find this information easily, it might be a red flag.

Choosing a sustainable compostable cat litter is a great way to show your love for both your cat and the planet.

By learning to spot real, trustworthy brands, you can make a choice that is not only good for the environment but also for your cat's health.

Ready to make a greener choice?

With a little research and these tips, you can find a sustainable litter that is perfect for your home and your cat.