Sustainably Yours is a clumping cat litter made from corn and cassava, sold in Small-grain, Large-grain, and Mixed-grain formulas. The brand positions Small-grain for faster clumping, Large-grain for less tracking, and Mixed-grain as a balance. Those are manufacturer descriptions, not independently verified head-to-head results. Customer reviews praise clumping and low dust, but some also report tracking and odor problems, so the right choice depends on which trade-off matters most in your home.
What is Sustainably Yours litter made of?
Sustainably Yours says its litter is made from cassava and corn, with no other ingredients stated in its FAQ. The company describes the crops as renewable and high-yielding and advertises firm clumping, ammonia odor control, light color, and virtually no dust on its product page. These are company claims; they do not establish how the litter performs in every home or prove a lifecycle advantage over other litters.
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The line is unscented, according to the manufacturer. Its “virtually dust-free” wording is a product claim, not a guarantee that no dust will be present or a medical assurance for cats or people sensitive to airborne particles.
Which Sustainably Yours grain size is right for your cat?
| Formula | Grain size | Manufacturer’s intended advantage | May suit households that… |
|---|---|---|---|
| Small-grain | Small | Faster clumping | Prioritize the brand’s faster-clumping option and are willing to see how the smaller grains behave around their box. |
| Large-grain | Large | Minimal tracking | Want to try the brand’s option intended to reduce litter carried away from the box. |
| Mixed-grain | Small and large | Balanced performance | Prefer a combination rather than choosing either grain size alone. |
The grain-size descriptions come from Sustainably Yours’s FAQ. They describe the brand’s intended differences, not a measured ranking. The available evidence does not establish that one formula consistently tracks less or clumps faster across different boxes, cats, or homes.
#1 Best Overall
- EXCEPTIONAL CLUMPING: Because our litter is made exclusively from corn and cassava, it’s naturally rich in starches. This results in dry, fast-forming, and firm clumps that you can trust to stay together while scooping and cleaning your litter box
- VIRTUALLY NO DUST: Our proprietary machinery removes dust at key points in the production process, resulting in a litter that protects cats from possible respiratory issues—and your home from a dusty mess
- OUTSTANDING ODOR CONTROL: Our proprietary formula instantly traps urine odor and prevents its build-up. And we never use fragrance, so there are no artificial scents that can irritate both cats and people
- SOFT ON PAWS: Our small-grain texture offers a gentle and smooth feel providing a comfortable digging experience — perfect for kittens, seniors, or cats with sensitive paws.
- DESIGNED FOR HEALTHIER CATS & HOMES: Made from corn and cassava with no added fragrances, dyes, or chemicals. Light color makes it easier to spot potential changes in the cat's urine, like the presence of blood.
How well does it control odor and tracking?
Sustainably Yours advertises ammonia odor control and long-lasting performance. Customer accounts are mixed: reviews reproduced on the brand’s product page praise clumping and low tracking, while Petco reviews include complaints about tracking and odor. A Chewy customer reported good clumping and little dust but poor odor control in that household. These are individual reports, not controlled tests or a representative survey, so they are useful as possible outcomes rather than predictions.
A rating snapshot on Petco’s listing for the Large-grain 26 lb product showed 4.2 out of 5 from 106 reviews when accessed in 2026. Sustainably Yours said its products had more than 3,500 five-star reviews across Petco, PetSmart, Pet Supplies Plus, and Amazon on its product page accessed in 2026; the page did not say when that total was measured. Both figures are time-sensitive, retailer- or brand-reported snapshots, not independent performance testing.
Rank #2
- OUTSTANDING ODOR CONTROL: Our proprietary formula instantly traps urine odor and prevents its build-up. And we never use fragrance, so there are no artificial scents that can irritate both cats and people.
- EXCEPTIONAL CLUMPING: Because our litter is made exclusively from corn and cassava, it’s naturally rich in starches. This results in dry, fast-forming, and firm clumps that you can trust to stay together while scooping and cleaning your litter box.
- VIRTUALLY NO DUST: Our proprietary machinery removes dust at key points in the production process, resulting in a litter that protects cats from possible respiratory issues—and your home from a dusty mess.
- LOW TRACKING: Larger grains stay in the box better. Our formula creates solid clumps that resist crumbling and scattering, keeping floors cleaner between box visits.
- DESIGNED FOR HEALTHIER CATS & HOMES: Made from corn and cassava with no added fragrances, dyes, or chemicals. Light color makes it easier to spot potential changes in the cat's urine, like the presence of blood.
Read feedback for the exact grain size you are considering, especially if odor or tracking is a deal-breaker. Reviews for Large-grain should not automatically be treated as evidence about Small-grain or Mixed-grain.
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The brand estimates that one 13 lb bag lasts about one month per cat. That is an estimate, not a guaranteed duration: the actual rate depends on factors such as how many boxes are used, how often they are scooped, and how much litter is removed or spilled. Prices and bag sizes vary by retailer, so check the current listing for the exact formula and package before estimating ongoing cost.
Rank #3
- OUTSTANDING ODOR CONTROL: Our proprietary formula instantly traps urine odor and prevents its build-up. And we never use fragrance, so there are no artificial scents that can irritate both cats and people.
- EXCEPTIONAL CLUMPING: Because our litter is made exclusively from corn and cassava, it’s naturally rich in starches. This results in dry, fast-forming, and firm clumps that you can trust to stay together while scooping and cleaning your litter box.
- VIRTUALLY NO DUST: Our proprietary machinery removes dust at key points in the production process, resulting in a litter that protects cats from possible respiratory issues—and your home from a dusty mess.
- LOW TRACKING: Larger grains stay in the box better. Our formula creates solid clumps that resist crumbling and scattering, keeping floors cleaner between box visits.
- DESIGNED FOR HEALTHIER CATS & HOMES: Made from corn and cassava with no added fragrances, dyes, or chemicals. Light color makes it easier to spot potential changes in the cat's urine, like the presence of blood.
- Fill the box: The brand recommends maintaining at least three inches of litter.
- Scoop each day: Remove waste daily, then top up as needed to restore the recommended depth.
- Clean the box: The FAQ advises a full box clean at least monthly.
- Dispose of waste in the trash: Sustainably Yours no longer recommends flushing any litter, citing ecosystem concerns and variation among sewage systems and local rules. Follow local waste guidance.
The brand also suggests using a litter mat to help manage tracking. It is an optional household measure, not a guarantee that grains will stay off the floor.
Is Sustainably Yours a sustainable or independently tested choice?
The stated ingredients are plant-based corn and cassava, but ingredient origin alone does not show the product’s total environmental impact. No lifecycle comparison establishing that Sustainably Yours is categorically more sustainable than other litter materials is available here. Likewise, no independent controlled comparison of its formulas against competing litters or product-specific veterinary safety assessment was located.
Rank #4
- The information below is per-pack only
- EXCEPTIONAL CLUMPING: Because our litter is made exclusively from corn and cassava, it’s naturally rich in starches. This results in dry, fast-forming, and firm clumps that you can trust to stay together while scooping and cleaning your litter box
- VIRTUALLY NO DUST: Our proprietary machinery removes dust at key points in the production process, resulting in a litter that protects cats from possible respiratory issues—and your home from a dusty mess
- OUTSTANDING ODOR CONTROL: Our proprietary formula instantly traps urine odor and prevents its build-up. And we never use fragrance, so there are no artificial scents that can irritate both cats and people
- SOFT ON PAWS: Our small-grain texture offers a gentle and smooth feel providing a comfortable digging experience — perfect for kittens, seniors, or cats with sensitive paws.
The brand’s health-ethos page reports more than 10,000 veterinarian partners and more than 50 hospital partners globally across Petfive brands. Those portfolio-wide figures are not evidence of a Sustainably Yours-specific veterinary endorsement.
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Sustainably Yours is worth considering if you want an unscented clumping litter made from corn and cassava and like having three grain-size options. Choose Small-grain to try the brand’s faster-clumping positioning, Large-grain for its reduced-tracking positioning, or Mixed-grain for the stated middle ground. Treat odor control and tracking as household-specific: customer feedback includes both praise and complaints, and no independent comparative testing establishes a universal winner.
Quick Recap
Best Value
- The information below is per-pack only
- OUTSTANDING ODOR CONTROL: Our proprietary formula instantly traps urine odor and prevents its build-up. And we never use fragrance, so there are no artificial scents that can irritate both cats and people.
- EXCEPTIONAL CLUMPING: Because our litter is made exclusively from corn and cassava, it’s naturally rich in starches. This results in dry, fast-forming, and firm clumps that you can trust to stay together while scooping and cleaning your litter box.
- VIRTUALLY NO DUST: Our proprietary machinery removes dust at key points in the production process, resulting in a litter that protects cats from possible respiratory issues—and your home from a dusty mess.
- LOW TRACKING: Larger grains stay in the box better. Our formula creates solid clumps that resist crumbling and scattering, keeping floors cleaner between box visits.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
