Sustainably Yours Cat Litter Reviews
We tested 1 Sustainably Yours product, priced from $29.99. Sustainably Yours scored highest at 9.3/10 (tested Mar 6, 2026), built for best-performing natural litter shoppers.
Every score below comes from the same dust, clumping, odor, tracking and value tests we run on every brand, updated through Mar 6, 2026.
The mistake people make with Sustainably Yours is assuming it behaves like every other corn litter, which for most shoppers means a sour, fermented smell by week two. This one is corn blended with cassava, and our testers never recorded that smell. It scored 8.6 out of 10 on odor with nothing added to mask anything.
We tested one bag, Sustainably Yours Small Grains, across four cats in two homes. It came out at 9.3 out of 10 overall, the highest score of any plant-based litter on our bench.
The numbers behind it: dust at 0.11mg per pour, an 8.8 out of 10, and tracking at 8.4, which is unusually tidy for a light granule. The clumping is graded 9.3 on handling, but be straight about what that is. We never ran the three-foot drop test on this bag, so clump survival is not measured. Price is the honest downside at $29.99 for 26 lbs, or $0.63 a day.
5 Things to Know Before You Buy Sustainably Yours
- 1.It is corn blended with cassava, not corn alone, and it is flushable, biodegradable and light. That combination is why it costs more than a plain corn bag.
- 2.Clump survival is not measured. Our clumping grade of 9.3 out of 10 comes from handling it in the box, not from the three-foot drop test we run on other litters. Treat it as strong for a natural litter and nothing more precise than that.
- 3.Dust measured 0.11mg per pour, an 8.8 out of 10. Six litters on our bench read lower; every budget clay we weighed read at least three times higher.
- 4.Tracking scored 8.4 out of 10, better than the walnut and soft-pine bags we tested. The grains are pale, so what does escape shows up on a dark floor.
- 5.It carries the highest bag price of the natural litters we tested at $29.99 for 26 lbs, which is $1.15 a pound and $0.63 a day. A bag runs about 6 weeks for one cat and about 4 weeks with several.
Every Sustainably Yours Product We Tested
A premium natural litter with harder clumping than most plant-based options and bright white granules for easy health monitoring.
Ranked by overall score, highest first, across the 1 Sustainably Yours product we tested.
Sustainably Yours FAQ
Does Sustainably Yours smell like corn after a week?
Our testers did not record that smell during the run, and the odor score of 8.6 out of 10 is one of the better natural-litter results on our bench. It is a blend with cassava rather than straight corn, which is the difference the brand is selling.
Can I flush it?
The bag is flushable and biodegradable. Check your own plumbing and your local rules first, because older pipes and septic systems do not always agree with any flushable litter.
Is it worth $29.99 when walnut is $24.99?
If flushable matters to you, yes. If it does not, Naturally Fresh runs $0.54 a day against $0.63 here and it has a measured clump survival number this bag does not. Sustainably Yours wins on dust, tracking and odor; walnut wins on proof and price.
Purrify - the additive we use in our own homes
Activated carbon you add to the litter you already buy. We have used it in our own homes for years, and with dozens of friends and family. You can keep your existing base litter.
Read our Purrify guide to picking a litter for odor control.
- Activated carbon, sold in bags
- 5.0 Google rating
- Stocked in 40+ pet stores across Canada