Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

What Is Cat Litter Made Of? Vet-Approved Types Explained (With Pictures)

Share

cat using litter box

While cats make excellent pets who bring love and companionship into our lives, they have specific requirements, such as toys and cat litter. Choosing the right cat litter can take a bit of research.

Traditional products such as clay and silica gel litters are tried and true choices that have been around for a while, but there are also biodegradable options made from materials such as wood, paper, and tofu. So, what is cat litter made of? There isn’t a simple answer to the question due to the variety of choices on the market, but you can keep reading to learn more about nine popular types of cat litter.

divider 2 cats

The 9 Types of Cat Litter

1. Clay Litter

Clay cat litter
Image By: BW Folsom, Shutterstock

Clay litter comes in two varieties: clumping and non-clumping. Both are easy to find and affordable, and they typically do a nice job of absorbing urine and smells. When moisture hits clumping litter, hard clumps are formed, which you can scoop out so urine doesn’t have to sit in your cat’s litter box, which can go a long way toward keeping odors under control. With non-clumping options, changing the litter box and discarding the litter is the only natural way to get rid of accumulated urine.

Clay litter has a few drawbacks; it’s often quite heavy, so it can be a challenge to carry. It also is a bit dusty. Cats can track clay litter through the house, making regular sweeping or vacuuming a necessity. Unfortunately, clay litter is not environmentally friendly since it’s not biodegradable.


2. Silica Gel Litter

Feline excrement in cat litter box with silica gel filler
Image Credit: Al More, Shutterstock

Silica gel litter is a popular alternative to traditional clay options. These products usually weigh less than clay litter and are good at soaking up urine and trapping smells. The feces must be scooped out daily, and the remaining litter must be raked or stirred.

Silica gel litters typically produce less dust than clay and can be good choices if you or your cat have dust sensitivities, but they are often prone to tracking. Silica litters aren’t biodegradable, so they may not be at the top of your list if environmental friendliness is one of your must-haves for cat litter. They’re also more expensive than clay litter.


3. Wheat Litter

Cat litter made of wood sawdust
Image Credit: J. Romanova, Shutterstock

Wheat litter delivers natural clumping action in non-toxic, environmentally friendly packages. They also provide natural odor control, but there are several scented products available as well.

Wheat weighs less than many of the other products on the market. They usually don’t create much dust, and what tracing there is tends to be minimal. Some sources suggest that bugs may be attracted to the smell of wheat litter.


4. Tofu Litter

close up scoop on clumping tofu cat litter
Image Credit: Anciens Huang, Shutterstock

Tofu litter comes in pellets and typically has surprisingly good natural odor control, and it also naturally clumps to make it easy to keep smells under control. It can develop mold if exposed to moisture and improperly stored. It needs to be kept somewhere cool and dry.

It’s a plant-based, biodegradable option that also performs pretty well regarding tracking and dust production. It lasts for a reasonably long time, but it can be a bit on the expensive side.


5. Wood Litter

Wood cat litter
Image Credit: alenka2194, Shutterstock

Wood litter generally comes in shavings and pellets. Both clumping and non-clumping products are available, and there are options featuring natural odor control and scented formulas, which we recommend avoiding.

Shaved products are incredibly soft, but they can be prone to tracking. Wood litter isn’t terribly dusty and is a good choice for people and pets with allergies and sensitivities to dust. The wood can come from a variety of sources; some brands use wood sourced from sustainably managed forests, and others use reclaimed wood.


6. Corn Litter

corn cat litter
Image Credit: Nynke van Holten, Shutterstock

Corn litter is a popular alternative to clay and silica products. It clumps like a charm, making it incredibly easy to scoop out urine. It also provides built-in odor control. It’s non-toxic and biodegradable, so it may be worth considering if you’re looking for an environmentally friendly product. While corn litters are usually excellent low-dust options, they are easy for cats to track around the house.


7. Pine Litter

close up of pine cat litter
Image Credit: Imageman, Shutterstock

Pine litter is available in clumping and non-clumping options and usually comes in pellets. It often has a strong scent, which some people and cats may find a bit too much, but it’s also an effective natural odor minimizer. It doesn’t produce much dust or track excessively. Some pets need time to adjust to the product’s texture. It’s biodegradable and often considered a more environmentally friendly than types. Many pet parents find this non-toxic option to be quite affordable as well.


8. Walnut Litter

Walnut Grind
Image Credit: 8H, Shutterstock

Walnut litter is made of ground walnut shells, and there are clumping and non-clumping products available. The walnut shells provide natural odor protection, but scented products are available for those looking for something extra in the odor control department.

Walnut litters generally don’t produce much dust and can be reasonably good for tracking. They’re eco-friendly choices since they’re biodegradable and sustainable.


9. Paper Litter

paper cat litter
Image Credit: Douglas Cliff, Shutterstock

While paper products are often soft on cats’ paws, they don’t clump, so keeping the litter box smelling fresh sometimes requires extra effort. On the other hand, paper litters don’t track much and produce less dust than other types.

Many brands are made from recycled paper. They’re biodegradable and excellent options if you’re looking for something sustainable. Odor control can sometimes be a challenge with paper litter, but scented products are available to help with the smell.

divider 3 paws

Cat Litter and the Environment

Pets have a substantial environmental impact through the food they eat, the waste they produce, and how their waste is disposed of. Cat litter in landfills has a steep environmental cost, given the number of companion cats and the amount of litter bought and disposed of by pet parents.

Clay and silica gel litters aren’t biodegradable, so not only do they end up in landfills, but they sit there for a long time. Strip mining, which can lead to environmental erosion, is often used to source the clay in cat litter.

Quartz, which must be mined and is technically non-renewable, is needed to make silica products. Silica cat litter has a pretty high carbon footprint. Litter made from tofu and wheat breaks down naturally over time, and those made with products like reclaimed wood and recycled paper that give existing materials a new life typically have lighter environmental impacts than clay and silica products.

gray british shorthair kitten in cat litter box
Image Credit: New Africa, Shutterstock

What’s the Best Way to Transition to a New Cat Litter

Cats can be particular about their litter. Giving them time to adjust to new options is a good idea. One way to make the change is to mix the old and new products in the box and slowly lower the amount of the old litter while adding more of the new product until you end up with just the new litter.

Alternatively, you can buy a second litter box, fill it with the type you’d like to transition to and place it near your cat’s old litter box. If your cat starts using the new litter on their own, give them time to get comfortable before removing the old litter box.

divider 3 paws

Final Thoughts

Selecting the ideal litter depends on your cat’s preferences and your environmental concerns. Clay litter is easy to find and is available in clumping and non-clumping options. Silica products deliver exceptional odor control and generally don’t require much attention to keep clean. However, clay and silica products aren’t great for the environment or biodegradable.

Several biodegradable and sustainable products are made from wood, recycled paper, and soy. If you decide to switch your cat to another litter, make sure to transition slowly to give your buddy time to adjust.


Featured Image Credit: Anciens Huang, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

The Original Space Invaders – Why Zero Respect for Personal Boundaries Is a Good Thing

Cats have a reputation for being independent, and in many ways they are. But anyone who has tried to work at a laptop...

How Cats Are Helping to Cure Cancer

When most people think about medical breakthroughs, they picture scientists in laboratories and clinical trials involving human patients. Few would imagine that the...

Ask Dr. Paola – My Cat Loves Eating Grass, But It Makes Her Vomit! (June 29, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Learning to Speak Cat with Anthony Smith

Many cat lovers know me through Learn to Speak Cat and Cattitude – Doggonit, cartoons that explore the often mysterious, occasionally mischievous, and...

More related

Maine Coon Cats For Sale in Ohio: Breeders List 2026

Catster advocates for adopting before shopping, though we fully understand there are many reasons for seeking a breeder. So, we encourage it to...

Why Does My Cat Attack Me at Night? 10 Vet-Reviewed Reasons

Ever wondered why your cat turns into a nighttime ninja, pouncing and attacking when you’re trying to get some sleep? It’s a mystery...

Why Does My Cat Have Bumps on Their Skin? 8 Common Reasons

It can be scary to notice a lump on your cat’s skin. Immediately, your mind rushed to the worst-case scenario—but don’t jump to...

How Long Does It Take for a Cat to Digest Food? Vet-Verified Digestive Anatomy & Physiology

Many pet cat owners love watching their cat feasting on their favorite food, grooming themselves, and then going on to do adorable “cat...

Keep reading

Can Cats Eat Jelly (Jam)? Vet-Reviewed Facts to Consider

Spreading jelly on your morning toast or putting it in a sandwich is an easy, delicious way to make a quick meal taste good without too much work. Food, no matter what it is, is always bound to capture a...

Can Cats Eat Jelly (Jam)

Can Cats Eat Corn? Vet-Approved Nutritional Facts & FAQ

Corn is a common side dish in many culinary traditions. It’s sweet, delicious, and healthy, making it a favorite among people worldwide. You might have noticed that corn is also a common ingredient in many cat foods. Still, you know...

Can Cats Eat Corn

8 Best Waterless Cat Shampoos in 2026: Reviews & Top Picks

Cats are known for their grooming, as they spend such a large part of their day, every day, bathing themselves. But sometimes your cat might get into something nasty that they might need help removing. Most cats are also known...

light grey cat with rubber ducky bath bathroom shampoo

How to Care for Hairless Cats: Vet-Approved Tips & Guide

Hairless cats are a real eye catcher for most people. Even people who aren’t too cat crazy might be mesmerized by the odd look and interesting breed characteristics. If you live in a home with an allergy sufferer, hairless cats...

hairless cat feline

Can Cats Eat Weed? Vet-Approved Facts & Safety Guide

If you have your medical license, you may have wondered if you can share your marijuana with your kitty. Marijuana, also known as weed, pot, Mary Jane, buds, or grass, is dried greenish flowers that come from the plant Cannabis...

Can Cats Eat Weed

Where Do Outdoor Cats Sleep? 7 Places They Like to Curl Up (Vet-Reviewed)

Some cats are strictly indoor pets and prefer lounging on a bed, tower, or sofa. However, others split their time between being inside and outside. So, when it comes to finding a safe place to sleep outdoors, where do our...

cat walking outdoors looking at the camera

Mouth Cancer in Cats: Vet-Reviewed Signs & When to Euthanize

One of the most difficult parts of pet ownership is making end-of-life decisions. Knowing when to euthanize a beloved animal companion is never easy, and there’s no right answer for every situation. Personally, I’ve had to make that choice three...

cat mouth check by vet

Why Do Cats Like to Be Petted? 4 Vet-Reviewed Reasons for This Behavior

The personalities of cats can vary widely, but one thing that they all enjoy is being petted. Some cats will happily accept a tickle under the chin from everyone, while other cats won’t approach anyone other than their very favorite...

a woman's hands petting a cat

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.